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Aprilaire Humidifier Replacement Filters

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Shipping and handling charges of $7.99 will be added to each order. All orders are shipped via UPS Ground or USPS (our option). Shipping prices are applicable to the 48 contiguous states only. Shipping rates for orders outside the contiguous U.S. may vary and will be charged accordingly. Click here for our detailed Shipping Policy.

Humidifier Replacement Filters

Humidifier Kits

Humidifier Replacement Parts

Weather Station

Humidifier Accessories


Aprilaire Humidifier Replacement Filters



#10

#10 Aprilaire Humidifier Replacement Filter

Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

Aprilaire

Fits Space-Gard/Aprilaire furnace humidifier models 110, 220, 550, 550A, and 558.

Space-Gard/Aprilaire furnace humidifier filters (evaporator pads).

Measures approximately 9 1/2" x 10" x 1 1/2".

Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home.

Water pad evaporator filters are the heart of your humidifier. It is the component that generates the important humidity to keep you comfortable during the heating season.

Black paint mark indicates top of filter.

For optimum performance replace filter once every 6 months or more often in hard water areas.

Space-Gard is also known as Aprilaire.

Easy Replacement Instructions

Price Per Filter
Number of Filters
Shipped Within
Cases to Order
6.51 each 24 Hours
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Shipping Policy





#12

#12 Aprilaire Humidifier Replacement Filter

Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

Aprilaire

Fits Space-Gard/Aprilaire furnace humidifier models 112, 136, 224, 440, 445, 445A and 448.

Space-Gard/Aprilaire furnace humidifier filters (evaporator pads).

Measures approximately 11 1/2" x 14 3/4" x 1 5/8".

Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home.

Water pad evaporator filters are the heart of your humidifier. It is the component that generates the important humidity to keep you comfortable during the heating season.

Black paint mark indicates top of filter.

For optimum performance replace filter once every 6 months or more often in hard water areas.

Space-Gard is also known as Aprilaire.

Easy Replacement Instructions

Price Per System
Number of Systems
Shipped Within
Cases to Order
8.99 each 24 Hours
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Shipping Policy





#30

#30 Aprilaire Humidifier Replacement Filter

Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

Aprilaire

Fits Space-Gard/Aprilaire furnace humidifier model 330.

Space-Gard/Aprilaire furnace humidifier filters (evaporator pads).

Measures approximately 8 1/2" x 15 3/4" x 1 3/4".

Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home.

Water pad evaporator filters are the heart of your humidifier. It is the component that generates the important humidity to keep you comfortable during the heating season.

Black paint mark indicates top of filter.

For optimum performance replace filter once every 6 months or more often in hard water areas.

Space-Gard is also known as Aprilaire.

This filter has been discontinued by Aprilaire.

This is an aftermarket replacement.

Easy Replacement Instructions

Price Per Filter
Number of Filters
Shipped Within
Cases to Order
12.99 each 24 Hours
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Shipping Policy





#35

#35 Aprilaire Humidifier Replacement Filter

Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

Aprilaire

Fits Space-Gard/Aprilaire furnace humidifier models 350, 360, 560, 560A, 568, 600, 600A, 600M, 700, 700A, 700M, 760, 760A, 768.

Space-Gard/Aprilaire furnace humidifier filters (evaporator pads).

Measures approximately 10" x 13 1/4" x 1 1/2".

Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home.

Water pad evaporator filters are the heart of your humidifier. It is the component that generates the important humidity to keep you comfortable during the heating season.

Black paint mark indicates top of filter.

For optimum performance replace filter once every 6 months or more often in hard water areas.

Space-Gard is also known as Aprilaire.

Easy Replacement Instructions

Price Per Filter
Number of Filters
Shipped Within
Cases to Order
7.51 each 24 Hours
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Shipping Policy





#45

#45 Aprilaire Humidifier Replacement Filter (2 Pack)

Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

Aprilaire

Fits Space-Gard/Aprilaire furnace humidifier model 400.

Space-Gard/Aprilaire furnace humidifier filters (evaporator pads).

Measures approximately 9 7/8" x 12 7/8" x 1 3/4".

2 wick filters per pack.

Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home.

Water pad evaporator filters are the heart of your humidifier. It is the component that generates the important humidity to keep you comfortable during the heating season.

Black paint mark indicates top of filter.

For optimum performance replace filter once every 6 months or more often in hard water areas.

Space-Gard is also known as Aprilaire.

Easy Replacement Instructions

Price Per Filter
Number of Packs
Shipped Within
Cases to Order
9.99 each 24 Hours
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Shipping Policy





FM90

FM90 Aprilaire Humidifier Replacement Filter

Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

Aprilaire

Fits FreshMist Aprilaire 6" drum-type humidifier models.

Cut-to-fit FreshMist Aprilaire humidifier filter belt (evaporator pad) for portable 6" drum-type humidifiers.

Measures approximately 6" x 65" x 1/4".

Black paint mark indicates top of filter.

For optimum performance replace filter twice a season.

Use Humidifier Water Treatment to eliminate lime scale build-up on your tank and filter to insure longer trouble free performance for your humidifier.

Price Per Filter
Number of Filters
Shipped Within
Cases to Order
4.99 each 24 Hours
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Shipping Policy





#4510

#4510 Aprilaire Replacement Filter for Model 1700 Dehumidifier

Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

Aprilaire #4510 Replacement Filter for dehumidifier model 1700.

Measures 17-3/4" x 16-7/8" x 7/8".

Washable or replacable.

MERV 8 with foam core and aluminum frame.

Price Per Filter
Number of Filters
Shipped Within
Cases to Order
38.79 each 24 Hours
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Shipping Policy



Humidifier Kits



Aprilaire Tune-up Kit for Model 110 Humidifier

Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

Aprilaire Maintenance Kit for Model 110 Humidifier

Kit contains:
  • 2- #10 Pads
  • 1- #4004 Strainer
  • 1- #4007 White Orifice
  • 1- #4038 Drain Spud


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    19.99 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 112 Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 112 Humidifier

    Kit contains:
  • 2- #12 Pads
  • 1- #4004 Orifice
  • 1- #4021 Red Orifice
  • 1- #4038 Drain Spud


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    25.99 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 220 Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 220 Humidifier

    Kit contains:
  • 2- #10 Pads
  • 1- #4004 Strainer
  • 1- #4007 White Orifice
  • 1- #4038 Drain Spud


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    19.99 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 224 Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 224 Humidifier.

    Kit contains:
  • 2- #12 Pads
  • 1- #4004 Strainer
  • 1- #4021 Red Orifice
  • 1- #4038 Drain Spud


  • Price Per Filter
    Number of Filters
    Shipped Within
    Cases to Order
    25.95 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 350 Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 350 Humidifier.

    Kit contains:
  • 2- #35 pads
  • 1- #4004 Strainer
  • 1- #4181 Scale Control
  • 1- #4182 Distribution Tray
  • 1- #4187 Drain Spud
  • 1- #4232 Blue Orifice


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    49.99 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 360 Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire maintenance kit for model 360 humidifier.

    Kit contains:
  • 2- #35 Pads
  • 1- #4004 Strainer
  • 1- #4181 Scale Control
  • 1- #4182 Distribution Tray
  • 1- #4187 Drain Spud
  • 1- #4232 Blue Orifice


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    49.99 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 400/400A Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 400/400A Humidifier.

    Kit contains:
  • 2- #45 Pads
  • 1- #4405 Float Cover
  • 2- #4406 Float Assembly
  • 1- #4407 Distribution Tray


  • Price Per Filter
    Number of Filters
    Shipped Within
    Cases to Order
    59.45 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 440 Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 440 Humidifier.

    Kit contains:
  • 2- #12 Pads
  • 1- #4038 Drain Spud
  • 1- #4079 Feed Tube
  • 1- #4081 Distribution Tray


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    55.99 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 445/445A Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 445/445A Humidifier.

    Kit contains:
  • 2- #12 Pads
  • 1- #4004 Strainer
  • 1- #4038 Drain Spud
  • 1- #4081 Distribution Tray
  • 1- #4091 Feed Tube
  • 1- #4148 Impeller
  • 1- #4232 Blue Orifice


  • Price Per Filter
    Number of Filters
    Shipped Within
    Cases to Order
    74.95 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 500/500A/500M Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 500, 500A, and 500M Humidifier.

    Kit contains:
  • 2- #10 Pads
  • 1- #4223 Drain Spud
  • 1- #4331 Distribution Tray
  • 1- #4640 Scale Control
  • 1- #4335 Feed Tube


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    39.62 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 550 Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 550/550A Humidifier.

    Kit contains:
  • 2- #10 pads
  • 1- #4217 Scale Control
  • 1- #4218 Distribution Tray
  • 1- #4223 Drain Spud
  • 1- #4226 Feed Tube
  • 1- #4184 Nozzle


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    47.99 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 558 Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 558 Humidifier

    Kit contains:
  • 2- #10 Pads
  • 1- #4217 Scale Control
  • 1- #4218 Distribution Tray
  • 1- #4223 Drain Spud
  • 1- #4226 Feed Tube


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    42.99 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 560/560A Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 560/560A Humidifier.

    Kit contains:
  • 2- #35 Pads
  • 1- #4223 Drain Spud
  • 1- #4236 Scale Control
  • 1- #4277 Distribution Tray
  • 1- #4184 Nozzle
  • 1- #4266 Feed Tube


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    48.99 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 568 Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 568 Humidifier.

    Kit contains:
  • 2- #35 Pads
  • 1- #4223 Drain Spud
  • 1- #4236 Scale Control
  • 1- #4277 Distribution Tray
  • 1- #4266 Feed Tube


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    43.94 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 600, 600A, and 600M Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 600, 600A, and 600M Humidifier.

    Kit contains:
  • 2- #35 Pads
  • 1- #4223 Drain Spud
  • 1- #4330 Scale Control
  • 1- #4331 Distribution Tray
  • 1- #4335 Feed Tube


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    39.95 each 24 Hours
    Return to Top
    Shipping Policy





    Aprilaire Tune-up Kit for Model 700 Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire Maintenance Kit for Model 700, 700A, 700M, and 760 Humidifier

    Kit contains:
  • 2- #35 Pads
  • 1- #4236 Scale Control
  • 1- #4246 Distribution Tray
  • 1- #4235 Feed Tube


  • Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    41.95 each 24 Hours
    Return to Top
    Shipping Policy



    Humidifier Replacement Parts



    #50

    #50 Aprilaire Current Sensing Ray

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    The Aprilaire #50 current sensing relay simplifies humidifier installation on furnaces without accessory terminals.

    Also works for Honeywell HE220, HE225, HE260, HE265, HE360 and HE365 humidifiers.

    Voltage Range: 21-24 VAC, 50-60 Hz

    Sensing Current: Minimum of 4.0 Amps

    Price Per Filter
    Number of Filters
    Shipped Within
    Cases to Order
    40.62 each 24 Hours
    Return to Top
    Shipping Policy





    #51

    #51 Aprilaire Current Sensing Relay

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    The Aprilaire #51 current sensing relay simplifies air cleaner installation on furnaces without accessory terminals.

    It can also be used to simplify installation of inline duct booster fans.

    Voltage Range: 100-125 VAC, 50-60 Hz Sensing Current: Minimum of 4.0 Amps

    Price Per Relay
    Number of Relays
    Shipped Within
    Cases to Order
    42.80 each 24 Hours
    Return to Top
    Shipping Policy





    #56

    #56 Aprilaire Humidistat

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 110, 112, 220, 224, 400, 440, 445, 445A, 448, 550, 558, 560, 560A, 568, 600, 700, 760, 760A and 768.

    The Aprilaire Auto Trac humidifier control is computer-equipped, completely automated and will never need manual adjustments.

    The advanced computer technology measures the outdoor temperature and indoor humidity and continually adjusts your homes indoor humidity to its optimum level.

    Price Per Humidistat
    Number of Humidistats
    Shipped Within
    Cases to Order
    81.10 each 24 Hours
    Return to Top
    Shipping Policy





    #58

    #58 Aprilaire Humidistat

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire model 110, 112, 220, 224, 400, 440, 445, 445A, 448, 500, 550, 558, 560, 560A, 568, 600, 700, 760, 760A and 768.

    Includes Control, Outdoor Sensor, Manual Mode Resistor, Manual Mode Sticker, Installation Instructions and Owners Manual.

    New lighted display includes indoor relative humidity readout, service indicator light, water panel change light, and "on" indicator light.

    The new Aprilaire # 58 automatic humidifier control works in conjunction with your furnace to control the operation of the humidifier.

    The control senses indoor RH and outdoor temperature and automatically adjusts the operation time of the humidifier to provide the optimum humidity level in the home.

    The digitial readout on the control displays the RH level inside the cold air return.

    It can also be used in manual mode when it is not possible to run wire to outdoor sensor.

    Price Per Humidistat
    Number of Humidistats
    Shipped Within
    Cases to Order
    90.79 each 24 Hours
    Return to Top
    Shipping Policy





    #1200

    #1200 Aprilaire Water Panel

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Replacement humidifier panel for Aprilaire Commercial Humidifier models 1120, 1130 and 1140.

    Measures 18" x 24" x 3" (nominal)

    Price Per Filter
    Number of Filters
    Shipped Within
    Cases to Order
    56.36 each 24 Hours
    Return to Top
    Shipping Policy





    #4001

    #4001 Aprilaire Saddle Valve

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 110, 112, 220, 224, 350, 360, 400, 440, 445, 445A, 448, 550, 558, 560, 560A, 568, 600, 700, 760, 760A and 768.

    Fits 3/8" O.D. to 7/8" O.D. copper tubing with 1/4" O.D. compression outlet.

    Includes brass needle valve, steel saddle clamp, nuts, sleeves, and inserts for poly or copper tubing.

    Do not install on PVC or PEX water line.

    This is the self-tapping water valve that attaches to the water line in your home and supplies water to the Aprilaire Humidifier.

    It is designed to either be open or closed and is not designed to regulate the flow of the water.

    Price Per Valve
    Number of Valves
    Shipped Within
    Cases to Order
    12.64 each 24 Hours
    Return to Top
    Shipping Policy





    #4004

    #4004 Aprilaire In-Line Strainer

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 110, 112, 220, 224, 350, 360, 400, 440, 445, 445A, 448, 550, 550A, 558, 560, 560A, 568, 600, 700, 760, 760A and 768.

    The In-Line Strainer is a tiny strainer that fits in the inlet fitting of the water solenoid valve which allows water to enter your humidifier or stops the water flow.

    It is designed to keep debris from entering the solenoid valve and should be checked annually for the build-up of minerals and grit.

    Replace as necessary.

    Price Per Strainer
    Number of Strainers
    Shipped Within
    Cases to Order
    5.44 each 24 Hours
    Return to Top
    Shipping Policy





    #4005

    #4005 Aprilaire Water Solenoid Valve

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Replacement solenoid water valve for Aprilaire humidifier models 110 and 112.

    Includes compression washer and nut on inlet side of valve.

    This is a 120V valve.

    Price Per Valve
    Number of Valves
    Shipped Within
    Cases to Order
    55.07 each 24 Hours
    Return to Top
    Shipping Policy





    #4007

    #4007 Aprilaire White Orifice

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 110 & 220.

    Orifices are the tiny nylon components which accurately meter the flow of water into your humidifier.

    They allow a specific amount of water to go into the humidifier, some of which is evaporated and some which performs the important flushing action.

    This keeps the water panel clean and reduces maintenance to a minimal amount.

    Price Per Orifice
    Number of Orifices
    Shipped Within
    Cases to Order
    3.10 each 24 Hours
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    Shipping Policy





    #4010

    #4010 Aprilaire Transformer

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Works with Honeywell HE220, HE225, HE260 and HE265 humidifiers.

    The Aprilaire 4010 Transformer will allow you to convert 110 volts to 24 volts that is needed for your humidifier installation

    24VAC 10 VA 60 HZ Class 2

    Price Per Transformer
    Number of Transformers
    Shipped Within
    Cases to Order
    21.28 each 24 Hours
    Return to Top
    Shipping Policy





    #4021

    #4021 Aprilaire Red Orifice

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 112 and 224.

    These are the tiny nylon components which accurately meter the flow of water into your humidifier.

    They allow a specific amount of water to go into the humidifier, some of which is evaporated and some which performs the important flushing action.

    This keeps the Water Panel clean and reduces maintenance to a minimal amount.

    Price Per Filter
    Number of Filters
    Shipped Within
    Cases to Order
    3.12 each 24 Hours
    Return to Top
    Shipping Policy





    #4031

    #4031 Aprilaire Cork Motor Isolator

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Aprilaire #4031 Motor Gasket for Model 700, 700A, 700M 760, 760A.

    Also known as "Cork Isolator".

    Should be placed between fan motor and bridge to isolate motor vibration.

    Price Per Isolator
    Number of Isolators
    Shipped Within
    Cases to Order
    8.82 each 24 Hours
    Return to Top
    Shipping Policy





    #4038

    #4038 Aprilaire Drain Spud

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models: 110, 112, 220, 224 & 440.

    This is the plastic fitting which attaches to the base of the housing of your humidifier.

    It is designed to allow for the connection of the 1/2" drain hose.

    Price Per Spud
    Number of Spuds
    Shipped Within
    Cases to Order
    4.28 each 24 Hours
    Return to Top
    Shipping Policy





    #4040

    #4040 Aprilaire Solenoid

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Replacement solenoid valve for Aprilaire Humidifier models 220, 224, 400, 440, 500, 550, 558, 560, 568, 600, 700, 760, 768.

    The #4040 soleniod valve includes a new inline strainer (pre-inserted in inlet side of valve), and a compression nut & washer for the inlet side only.

    24 VAC 2.3 Watts

    Price Per Solenoid
    Number of Solenoids
    Shipped Within
    Cases to Order
    55.75 each 24 Hours
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    Shipping Policy





    #4079

    #4079 Aprilaire Feed Tube and Nozzle

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 440, 350 and 360

    Includes feed tube, nozzle, blue orifice, strainer, compression fitting.

    This is the water feed tube which attaches to the outlet side of the solenoid valve.

    It then slides into a nozzle which attaches to the water distribution tray at the top of the unit.

    Price Per Package
    Number of Packages
    Shipped Within
    Cases to Order
    9.98 each 24 Hours
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    #4081

    #4081 Aprilaire Water Distribution Tray

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 440, 445, 445A & 448

    These are the water distribution trays which distribute water evenly to all portions of the evaporative panel.

    They attach to the u-shaped scale control insert and incorporate a pumice coating inside of them to distribute the water evenly to all portions of the tray.

    This even water distribution ensures maximum evaporation from your humidifier.

    Price Per Tray
    Number of Trays
    Shipped Within
    Cases to Order
    22.44 each 24 Hours
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    Shipping Policy





    #4087

    #4087 Aprilaire Float Assembly

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire model 445.

    Sturdy construction.

    High performance.

    Low on maintanence.

    Price Per Assembly
    Number of Assemblies
    Shipped Within
    Cases to Order
    69.02 each 24 Hours
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    Shipping Policy





    #4089

    #4089 Aprilaire Pump Assembly for 445 Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Aprilaire #4089 Pump Assembly for 445, 445A and 448 humidifier.

    Sturdy construction.

    High performance.

    Low on maintanence.

    Price Per Assembly
    Number of Assemblies
    Shipped Within
    Cases to Order
    235.36 each 24 Hours
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    #4091

    #4091 Aprilaire Hose and Nozzle

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 445, 445A & 448.

    This is the water feed tube which attaches to the outlet side of the solenoid valve.

    It then slides into a nozzle which attaches to the water distribution tray at the top of the unit.

    The water distribution tray attaches to the scale control insert which encases the water panel evaporator.

    Price Per Nozzle
    Number of Nozzles
    Shipped Within
    Cases to Order
    14.52 each 24 Hours
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    #4092

    #4092 Aprilaire Humidifier Replacement Reservoir Divider

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 445, 445A & 448.

    This is the component which divides the reservoir and attaches to the bottom of your Humidifier.

    Price Per Divider
    Number of Dividers
    Shipped Within
    Cases to Order
    14.36 each 24 Hours
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    Shipping Policy





    #4093

    #4093 Aprilaire Reservior Liner

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 445, 445A & 448.

    This is the plastic insert which fits in the reservoir at the base of your Humidifier and makes maintenance fast and easy.

    Price Per Liner
    Number of Liners
    Shipped Within
    Cases to Order
    15.36 each 24 Hours
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    Shipping Policy





    #4100

    #4100 Aprilaire Pump Rebuild Kit for 448, 445A, 445

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Aprilaire 4100 Pump Rebuild Kit for 445, 448 humidifiers.

    Sturdy construction

    High performance.

    Low on maintenance.

    Price Per Kit
    Number of Kits
    Shipped Within
    Cases to Order
    54.24 each 24 Hours
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    Shipping Policy





    #4101

    #4101 Aprilaire Float Chamber

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 445, 445A & 448.

    This is the knob and bolt assembly, which attaches the reservoir to the base of your humidifier.

    Price Per Chamber
    Number of Chambers
    Shipped Within
    Cases to Order
    13.36 each 24 Hours
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    Shipping Policy





    #4148

    #4148 Aprilaire Impellor

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 445, 445A & 448.

    This is the tiny propeller that sits down in the reservoir and drives water up the feed tube to the water distribution tray.

    This water flows through the Water Panel Evaporator where humidity is created.

    Price Per Impellor
    Number of Impellors
    Shipped Within
    Cases to Order
    16.74 each 24 Hours
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    Shipping Policy





    #4166

    #4166 Aprilaire Knobs

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    These are the replacement knobs, which attach to the front cover of the housing.

    Two knobs are required for each unit.

    Price Per Knob
    Number of Knobs
    Shipped Within
    Cases to Order
    9.96 each 24 Hours
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    Shipping Policy





    #4181

    #4181 Aprilaire Float Chamber

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire

    Fits Aprilaire models 350 and 360 .

    U-shaped component encases the water panel and directs any built-up mineral deposits back into the water panel.

    1 float chamber per package.

    Replace as needed.

    Easy Replacement Instructions

    Price Per Chamber
    Number of Chambers
    Shipped Within
    Cases to Order
    18.86 each 24 Hours
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    Shipping Policy





    #4182

    #4182 Aprilaire Water Distribution Tray

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 350 & 360.

    This is the u-shaped component which encases the Water Panel Evaporator.

    Their purpose is to direct any mineral which builds up back into the evaporative panel.

    They prevent water from leaving the evaporative section and entering another portion of the humidifier.

    Price Per Tray
    Number of Trays
    Shipped Within
    Cases to Order
    11.33 each 24 Hours
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    Shipping Policy





    #4183

    #4183 Aprilaire Humidifier Replacement Distribution Tray Cover

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 350 & 360.

    This is a plastic cover which snaps into the top of the water distribution tray.

    Price Per Cover
    Number of Covers
    Shipped Within
    Cases to Order
    19.90 each 24 Hours
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    Shipping Policy





    #4184

    #4184 Aprilaire Nozzle

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 350, 360, 550, 558, 560, 560A & 568.

    This is the component where the feed tube slides into at the top of the water panel evaporator assembly.

    The nozzle attaches to the water distribution tray at the top of the unit.

    Price Per Nozzle
    Number of Nozzles
    Shipped Within
    Cases to Order
    7.66 each 24 Hours
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    Shipping Policy





    #4185

    #4185 Aprilaire Baffle

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    For use with Aprilaire models 350 & 360.

    This is the component which attaches to the inside of the housing and secures the water feed nozzle in place.

    Price Per Filter
    Number of Filters
    Shipped Within
    Cases to Order
    16.38 each 24 Hours
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    Shipping Policy





    #4187

    #4187 Aprilaire Drain Spud

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 350 & 360.

    This is the plastic fitting which attaches to the base of the housing of your humidifier.

    It is designed to allow for the connection of the 1/2" drain hose.

    Price Per Spud
    Number of Spuds
    Shipped Within
    Cases to Order
    6.50 each 24 Hours
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    Shipping Policy





    #4191

    #4191 Aprilaire Soleniod Valve Assembly

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Replacement solenoid for Aprilaire humidifiers #4191 - models 350 and 360.

    Contains 0.3 Watts, 120 Volts.

    Includes pre-installed inline strainer on inlet side of valve, ferule and compression nut on inlet side only.

    NOTE: This solenoid valve is only for model 350 with serial numbers above 12300 and model 360 with serial numbers above 14784.

    Price Per Assembly
    Number of Assemblies
    Shipped Within
    Cases to Order
    75.79 each 24 Hours
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    Shipping Policy





    #4217

    #4217 Aprilaire Float Chamber

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire

    Fits Aprilaire models 550 and 558.

    U-shaped component encases the water panel and directs any built-up mineral deposits back into the water panel.

    1 float chamber per package.

    Replace as needed.

    Easy Replacement Instructions

    Price Per Chamber
    Number of Chambers
    Shipped Within
    Cases to Order
    14.36 each 24 Hours
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    Shipping Policy





    #4218

    #4218 Aprilaire Water Distribution Tray

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 550 & 558.

    These are the water distribution trays which distribute water evenly to all portions of the evaporative panel.

    They attach to the u-shaped scale control insert and incorporate specially formulated insert inside of them to distribute the water evenly to all portions of the tray.

    This even water distribution ensures maximum evaporation from your humidifier.

    Price Per Tray
    Number of Trays
    Shipped Within
    Cases to Order
    13.36 each 24 Hours
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    Shipping Policy





    #4223

    #4223 Aprilaire Drain Spud

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 550, 558, 560, 568, 560A & 600.

    This is the plactic fitting which attaches to the base of the housing of your humidifier.

    It is designed to allow for the connection of the 1/2" drain hose.

    Price Per Spud
    Number of Spuds
    Shipped Within
    Cases to Order
    4.08 each 24 Hours
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    Shipping Policy





    #4226

     #4226 Aprilaire Feed Tube with Compressor Sleeve

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Feed tube with compression sleeve for Aprilaire humidifier model 550.

    Includes tube, yellow orifice, compression fitting, and strainer.

    Price Per Package
    Number of Packages
    Shipped Within
    Cases to Order
    9.98 each 24 Hours
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    Shipping Policy





    #4231

    #4231 Aprilaire Yellow Orifice

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 400, 500, 550, 550A, 558, 560, 560A, 568 & 600.

    These are the tiny nylon components which, accurately meter the flow of water into your humidifier.

    They allow a specific amount of water to go into the humidifier, some of which is evaporated and some which performs the important flushing action.

    This keeps the Water Panel clean and reduces maintenance to a minimal amount.

    Price Per Orifice
    Number of Orifices
    Shipped Within
    Cases to Order
    3.10 each 24 Hours
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    Shipping Policy





    #4232

    #4232 Aprilaire Blue Orifice

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 350, 360, 440, 700, 760, 760A and 768.

    These are the tiny nylon components which, accurately meter the flow of water into your humidifier.

    They allow a specific amount of water to go into the humidifier, some of which is evaporated and some which performs the important flushing action.

    This keeps the Water Panel clean and reduces maintenance to a minimal amount.

    Price Per Orifice
    Number of Orifices
    Shipped Within
    Cases to Order
    3.12 each 24 Hours
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    Shipping Policy





    #4235

     #4235 Aprilaire Feed Tube and Nozzle

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 700, 760, 760A & 768.

    This is the water feed tube which attaches to the outlet side of the solenoid valve and the feed tube slides into a nozzle.

    The nozzle attaches to the inside, top, of the base of the unit which mounts to the heating/air conditioning ductwork.

    Includes feed tube, nozzle, orifice, ferule, compression nut, strainer.

    Price Per Package
    Number of Packages
    Shipped Within
    Cases to Order
    11.98 each 24 Hours
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    Shipping Policy





    #4236

    #4236 Aprilaire Float Chamber

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire

    Fits Aprilaire models 560, 560A, 568, 700, 760, 760A, and 768.

    U-shaped component encases the water panel and directs any built-up mineral deposits back into the water panel.

    1 float chamber per package.

    Replace as needed.

    Easy Replacement Instructions

    Price Per Chamber
    Number of Chambers
    Shipped Within
    Cases to Order
    9.98 each 24 Hours
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    Shipping Policy





    #4237

    #4237 Aprilaire Motor

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Aprilaire #4237 Motor Circuit Board for Model 700, 760, 760A, 768.

    This part does not work with the 700A / 700M models (see part #4670).

    Price Per Motor
    Number of Motors
    Shipped Within
    Cases to Order
    98.58 each 24 Hours
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    Shipping Policy





    #4238

    #4238 Aprilaire Circuit Board

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Aprilaire #4238 Circuit Board for Model 700, 760, 760A, 768.

    This part does not work with the 700A / 700M models (see relay part # 4740).

    Includes wiring harness.

    Price Per Part
    Number of Parts
    Shipped Within
    Cases to Order
    70.18 each 24 Hours
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    Shipping Policy





    #4240

    #4240 Aprilaire Male Disconnect Assembly

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Aprilaire #4240 Male Wiring Harness For Models 700, 700A, 700M 760, 760A.

    Male disconnect assembly - this is where wiring connection is made between two halves of humidifier.

    This assembly is attached to the base of the humidifier, which is the side that attaches to the furnace.

    Price Per Assembly
    Number of Assemblies
    Shipped Within
    Cases to Order
    23.86 each 24 Hours
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    Shipping Policy





    #4246

     #4246 Aprilaire Water Distribution Tray

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 700, 760, 760A & 768.

    These are the water distribution trays which distribute water evenly to all portions of the evaporative panel.

    They attach to the u-shaped scale control insert and incorporate a contoured blanket inside of them to distribute the water evenly to all portions of the tray.

    This even water distribution ensures maximum evaporation from your humidifier.

    Price Per Tray
    Number of Trays
    Shipped Within
    Cases to Order
    14.52 each 24 Hours
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    Shipping Policy





    #4247

    #4247 Aprilaire Fan Blade for Powered Humidifier

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Aprilaire #4247 Fan Blade for Model 700, 700A, 700M 760, 760A.

    Approximately 10-1/2" Wide.

    Price Per Blade
    Number of Blades
    Shipped Within
    Cases to Order
    23.55 each 24 Hours
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    Shipping Policy





    #4258

    #4258 Aprilaire Control Relay

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Aprilaire #4258 Control Relay for use in Aprilaire commercial humidifier - model 1120 and residential models 110 & 112, 350, 360.

    Replacement relay located inside certain fan powered and recirculating type Aprilaire humidifiers.

    Used to turn on the fan motor or pump motor.

    Price Per Relay
    Number of Relays
    Shipped Within
    Cases to Order
    72.50 each 24 Hours
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    Shipping Policy





    #4265

    #4265 Aprilaire Humidifier Replacement Cover

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Aprilaire #4265 Humidifier Cover for model 560.

    Sturdy construction.

    Price Per Cover
    Number of Covers
    Shipped Within
    Cases to Order
    81.58 each 24 Hours
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    Shipping Policy





    #4266

    #4266 Aprilaire Feed Tube with Compressor Sleeve

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Feed tube for Aprilaire model 560, 560A, 568.

    Includes feed tube with installed orifice, strainer, compression nut with ferule.

    Feed tube length approximately 29-1/4" Long.

    Price Per Package
    Number of Packages
    Shipped Within
    Cases to Order
    8.82 each 24 Hours
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    Shipping Policy





    #4271

    #4271 Aprilaire Door for Air Cleaner Model 2400

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Replacement access door for air cleaner.

    This is the old style door and only fits on the old style air cleaner cabinets.

    Door is held in place by large plastic latches that are already attached to the top and bottom of the existing metal cabinet.

    Price Per Door
    Number of Doors
    Shipped Within
    Cases to Order
    35.80 each 24 Hours
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    Shipping Policy





    #4277

    #4277 Aprilaire Water Distribution Tray

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 560, 560A & 568.

    These are the water distribution trays which distribute water evenly to all portions of the evaporative panel.

    They attach to the u-shaped scale control insert and incorporate a pumice coating inside of them to distribute the water evenly to all portions of the tray.



    Price Per Tray
    Number of Trays
    Shipped Within
    Cases to Order
    21.28 each 24 Hours
    Return to Top
    Shipping Policy





    #4315

    #4315 Aprilaire Ionizing Wire

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Replacement ionizing wires for Aprilaire 5000 electronic air cleaner.

    Designed for model 5000 units made BEFORE May 2005.

    Ionizing wires are sold separately and measures approximately 25 inch long.

    Price Per Wire
    Number of Wires
    Shipped Within
    Cases to Order
    10.18 each 24 Hours
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    Shipping Policy





    #4330

    #4330 Aprilaire Scale Control Insert

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire

    Fits Aprilaire model 600.

    U-shaped component encases the water panel and directs any built-up mineral deposits back into the water panel.

    1 scale control insert per package.

    Replace as needed.

    Easy Replacement Instructions

    Price Per Insert
    Number of Inserts
    Shipped Within
    Cases to Order
    11.04 each 24 Hours
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    Shipping Policy





    #4331

    #4331 Aprilaire Water Distribution Tray

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire model 500 and 600.

    These are the water distribution trays which distribute water evenly to all portions of the evaporative panel.

    They attach to the u-shaped scale control insert and incorporate a pumice coating inside of them to distribute the water evenly to all portions of the tray.

    This even water distribution ensures maximum evaporation from your humidifier.

    Price Per Tray
    Number of Trays
    Shipped Within
    Cases to Order
    12.10 each 24 Hours
    Return to Top
    Shipping Policy





    #4332

    #4332 Aprilaire Damper Assembly

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Fits Aprilaire models 600, 500, 550 and 400.

    Damper Assembly includes damper blade, spring, and knob.

    Price Per Assembly
    Number of Assemblies
    Shipped Within
    Cases to Order
    22.44 each 24 Hours
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    Shipping Policy





    #4335

    #4335 Aprilaire Feed Tube with Compressor Sleeve

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire models 400, 500 and 600.

    Includes tube, orifice, strainer, ferule and compression nut.

    This is the water feed tube inside the humidifier, which connects the solenoid valve to the water distribution tray.

    Price Per Package
    Number of Packages
    Shipped Within
    Cases to Order
    7.66 each 24 Hours
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    Shipping Policy





    #4349

    #4349 Aprilaire Humidifier Replacement Door Catch for 2200 and 2400

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    Aprilaire #4349 Door Catch for models 2200 and 2400.

    These catches are for the new style doors.

    Kit includes the door catch, four plastic pins and a foam seal.

    Price Per Part
    Number of Parts
    Shipped Within
    Cases to Order
    7.30 each 24 Hours
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    Shipping Policy





    #4403

    #4403 Aprilaire Float Chamber

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter

    Aprilaire

    Fits Aprilaire model 400.

    U-shaped component encases the water panel and directs any built-up mineral deposits back into the water panel.

    1 float chamber per package.

    Replace as needed.

    Easy Replacement Instructions

    Price Per Chamber
    Number of Chambers
    Shipped Within
    Cases to Order
    12.20 each 24 Hours
    Return to Top
    Shipping Policy





    #4405

    #4405 Aprilaire Float Cover

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire model 400.

    This acts as a guide to keep the two #4406 Float Assemblies in place as they rise and drop.

    Price Per Cover
    Number of Covers
    Shipped Within
    Cases to Order
    12.20 each 24 Hours
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    Shipping Policy





    #4406

    #4406 Aprilaire Float Assembly

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire model 400.

    There are two float assemblies required, one for function and one for safety backup.

    These float in the Scale Control Insert/Float Chamber to control the supply of water.

    When the water level is high enough, the right hand float turns off the water supply.

    As water evaporates and the float reaches the bottom, the electronic switch is activated and the water supply turns on.

    Price Per Assembly
    Number of Assemblies
    Shipped Within
    Cases to Order
    11.04 each 24 Hours
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    Shipping Policy





    #4407

    #4407 Aprilaire Water Distribution Tray

    Space-Gard / Aprilaire |ITEM_MODEL| Humidifier Replacement Filter Filter



    For use with Aprilaire model 400.

    This distributes water evenly to all portions of the evaporative panel.

    It attaches to the U-shaped Scale Control Insert and features a pumice coating to distribute the water evenly to all portions of the tray.

    This even water distribution ensures maximum evaporation from your humidifier.

    Price Per Tray
    Number of Trays
    Shipped Within
    Cases to Order
    15.58 each