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Aprilaire Humidifier Filter


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Aprilaire Humidifier Replacement Filters

Humidifier Filters

Whole House Filters

Shipping and handling charges of $6.99 per order will be added to each order. All orders are shipped via UPS or USPS (our option). Shipping prices are applicable to physical addresses in 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 Accessories


Aprilaire Humidifier Replacement Filters



#10

#10 Aftermarket Aprilaire Humidifier Replacement Water Panel

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

Aprilaire

Aftermarket Space-Gard/Aprilaire furnace humidifier Water Panels (evaporator pads).

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

  • Fits Space-Gard/Aprilaire furnace humidifier models 110, 220, 500, 500A, 500M, 550, 550A, and 558.
  • 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.
  • Black paint mark indicates top of panel.
  • For optimum performance, replace panel once every 6 months or more often in hard water areas.
Easy Replacement Instructions
Free Shipping on orders over $99.*


Price Per Pad
Number of Pads
Shipped Within
Cases to Order
5.99 each 24 hours
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Shipping Policy





#12

#12 Aftermarket Aprilaire Humidifier Replacement Water Panel

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

Aprilaire

Aftermarket Space-Gard/Aprilaire furnace humidifier Water Panels (evaporator pads).

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

  • Fits Space-Gard/Aprilaire furnace humidifier models 112, 136, 224, 225, 440, 445, 445A and 448.
  • 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.
  • Black paint mark indicates top of panel.
  • For optimum performance, replace panel once every 6 months or more often in hard water areas.
Easy Replacement Instructions
Free Shipping on orders over $99.*


Price Per panel
Number of Panels
Shipped Within
Cases to Order
8.99 each 24 hours
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Shipping Policy





#30

#30 Aprilaire Humidifier Replacement Water Panel

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

Aprilaire

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

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.

  • Fits Space-Gard/Aprilaire furnace humidifier model 330.
  • 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.
  • Black paint mark indicates top of filter.
  • This filter has been discontinued by Aprilaire, and is only available as an aftermarket replacement.
  • For optimum performance, replace filter once every 6 months or more often in hard water areas.
Easy Replacement Instructions
Free Shipping on orders over $99.*


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 Water Panel Aftermarket

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

Aprilaire

Aftermarket Space-Gard/Aprilaire furnace humidifier Water Panels (evaporator pads).

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

  • Fits Space-Gard/Aprilaire furnace humidifier models 350, 360, 560, 560A, 568, 600, 600A, 600M, 700, 700A, 700M, 760, 760A, 768.
  • Measures approximately 10" x 13 1/4" x 1 1/2".
  • The metal Honeycomb filtration traps mineral pollutants found in water and help prevent them from entering your home.
  • Black paint mark indicates top of panel.
  • For optimum performance, replace panel once every 6 months or more often in hard water areas.
Easy Replacement Instructions
Free Shipping on orders over $99.*


Price Per Filter
Number of Filters
Shipped Within
Cases to Order
5.99 each 24 hours
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Shipping Policy



Humidifier Maintenance Kits



4785

Aprilaire Humidifier Maintenance Kit for 350 & 360 series

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

Maintenance kit for Aprilaire Humidifier Models 350 and 360.

Kit contains:

  • 1-#35 pad
  • 1-#4232 Blue Orifice
  • 1-#4079 Feed Tube
  • 1-#4004 Strainer
  • 1-#4184 Nozzle
  • 1-#4182 Distribution Tray
  • 1-#4181 Scale Control Insert
  • 1-#4081 Distribution Tray
  • 1-#4187 Float Assembly
Free Shipping on orders over $99.*


Price Per Filter
Number of Filters
Shipped Within
Cases to Order
49.30 each 24 hours
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Shipping Policy



Humidifier Replacement Parts



#50

#50 Aprilaire Current Sensing Ray

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



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.
Free Shipping on orders over $99.*


Price Per Filter
Number of Filters
Shipped Within
Cases to Order
17.72 each 24 hours
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Shipping Policy





#4004

#4004 Aprilaire In-Line Strainer

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



#4004 Aprilaire In-Line Strainer

  • For use with Aprilaire models 110, 112, 220, 224, 330, 350, 360, 400, 400A, 400M, 440, 445, 445A, 448, 500, 550, 550A, 558, 560, 560A, 568, 600, 600A, 600M, 700, 700A, 700M 760, 760A, 768 and 800.
  • Fits in the inlet fitting of the water solenoid valve which allows water to enter your humidifier or stops the water flow.
  • 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.
Free Shipping on orders over $99.*


Price Per Strainer
Number of Strainers
Shipped Within
Cases to Order
2.51 each 24 hours
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Shipping Policy





#4021

#4021 Aprilaire Red Orifice

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



#4021 Aprilaire Red Orifice

  • For use with Aprilaire models 112, 224 and 330.
  • These are the tiny nylon components which accurately meter the flow of water into your humidifier.
  • Allows a specific amount of water to go into the humidifier, some of which is evaporated and some which performs the important flushing action.
  • Keeps the Water Panel clean and reduces maintenance to a minimal amount.
Free Shipping on orders over $99.*


Price Per Filter
Number of Filters
Shipped Within
Cases to Order
1.22 each 24 hours
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Shipping Policy





#4040

#4040 Aprilaire Humidifier Solenoid Valve--DISCONTINUED

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



Aprilaire #4040 Humidifier Solenoid Valve

  • For Aprilaire Humidifier models 220, 224, 330, 400, 400A, 400M, 440, 500, 550, 550A, 558, 560, 560A, 568, 600, 600A, 600M, 700, 700A, 700M, 760, 760A, 768.
  • 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.
NOTE: This part is manufactured with either a round solenoid coil OR a square solenoid coil depending upon which production line they come off of. Both work for all applications. The images to the left show both options you may receive.

Solenoid Valve Replacement Instructions


Regular Price = $43.99
SPECIAL PRICE = $37.99

Free Shipping on orders over $99.*


Price Per Solenoid
Number of Solenoids
Shipped Within
Cases to Order
30.36 each 24 hours
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Shipping Policy





#4092

#4092 Aprilaire Humidifier Replacement Reservoir Divider

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



#4092 Aprilaire Humidifier Replacement Reservoir Divider

  • For use with Aprilaire models 445, 445A & 448.
  • Divides the reservoir and attaches to the bottom of your Humidifier.
Free Shipping on orders over $99.*


Price Per Divider
Number of Dividers
Shipped Within
Cases to Order
6.05 each 24 hours
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Shipping Policy





#4181

#4181 Aprilaire Float Chamber

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

Aprilaire

#4181 Aprilaire Float Chamber

  • 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
Free Shipping on orders over $99.*


Price Per Chamber
Number of Chambers
Shipped Within
Cases to Order
8.13 each 24 hours
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Shipping Policy





#4182

#4182 Aprilaire Water Distribution Tray

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



#4182 Aprilaire Water Distribution Tray

  • For use with Aprilaire models 350 & 360.
  • This is the u-shaped component which encases the Water Panel Evaporator.
  • Directs any mineral which builds up back into the evaporative panel.
  • Prevents water from leaving the evaporative section and entering another portion of the humidifier.
Free Shipping on orders over $99.*


Price Per Tray
Number of Trays
Shipped Within
Cases to Order
8.60 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



#4183 Aprilaire Humidifier Replacement Distribution Tray Cover

  • For use with Aprilaire models 350 & 360.
  • Snaps into the top of the water distribution tray.
Free Shipping on orders over $99.*


Price Per Cover
Number of Covers
Shipped Within
Cases to Order
8.50 each 24 hours
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Shipping Policy





#4184

#4184 Aprilaire Nozzle

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



#4184 Aprilaire Nozzle

  • 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.
  • Attaches to the water distribution tray at the top of the unit.
Free Shipping on orders over $99.*


Price Per Nozzle
Number of Nozzles
Shipped Within
Cases to Order
3.05 each 24 hours
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Shipping Policy





#4185

#4185 Aprilaire Baffle

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

#4185 Aprilaire Baffle

  • 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.
Free Shipping on orders over $99.*


Price Per Filter
Number of Filters
Shipped Within
Cases to Order
7.55 each 24 hours
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Shipping Policy





#4217

#4217 Aprilaire Scale Control Insert

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

Aprilaire

#4217 Aprilaire Scale Control Insert

  • Fits Aprilaire models 500, 550, 550A 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
Free Shipping on orders over $99.*


Price Per Chamber
Number of Chambers
Shipped Within
Cases to Order
6.11 each 24 hours
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Shipping Policy





#4218

#4218 Aprilaire Water Distribution Tray

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



#4218 Aprilaire Water Distribution Tray

  • For use with Aprilaire models 500, 550, 550A & 558.
  • Distributes water evenly to all portions of the evaporative panel.
  • Attaches 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.
  • Even water distribution ensures maximum evaporation from your humidifier.
Free Shipping on orders over $99.*


Price Per Tray
Number of Trays
Shipped Within
Cases to Order
6.60 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.
Free Shipping on orders over $99.*


Price Per Package
Number of Packages
Shipped Within
Cases to Order
4.84 each 24 hours
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Shipping Policy





#4231

#4231 Aprilaire Yellow Orifice

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



#4231 Aprilaire Yellow Orifice

  • For use with Aprilaire models 400, 400A, 400M, 500, 550, 550A, 558, 560, 560A, 568, 600, 600A & 600M.
  • These are the tiny nylon components which, accurately meter the flow of water into your humidifier.
  • Allows a specific amount of water to go into the humidifier, some of which is evaporated and some which performs the important flushing action.
  • Keeps the Water Panel clean and reduces maintenance to a minimal amount.
Free Shipping on orders over $99.*


Price Per Orifice
Number of Orifices
Shipped Within
Cases to Order
1.27 each 24 hours
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Shipping Policy





#4232

#4232 Aprilaire Blue Orifice

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



#4232 Aprilaire Blue Orifice

  • For use with Aprilaire models 350, 360, 440, 560, 560A, 568, 700, 700A, 700M, 760, 760A and 768.
  • These are the tiny nylon components which, accurately meter the flow of water into your humidifier.
  • Allows a specific amount of water to go into the humidifier, some of which is evaporated and some which performs the important flushing action.
  • Keeps the Water Panel clean and reduces maintenance to a minimal amount.
Free Shipping on orders over $99.*


Price Per Orifice
Number of Orifices
Shipped Within
Cases to Order
1.22 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.
  • Includes wiring harness. The circuit board also includes a relay and transformer that supply 115V to a fan motor and 24V to solenoid when needed.
  • This part does not work with the 700A / 700M models (see relay part # 4740).
Free Shipping on orders over $99.*


Price Per Part
Number of Parts
Shipped Within
Cases to Order
30.87 each 24 hours
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Shipping Policy





#4246

#4246 Aprilaire Water Distribution Tray

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



#4246 Aprilaire Water Distribution Tray

  • For use with Aprilaire models 700, 700A, 700M, 760, 760A & 768.
  • Distributes water evenly to all portions of the evaporative panel.
  • Attaches 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.
  • Even water distribution ensures maximum evaporation from your humidifier.
Free Shipping on orders over $99.*


Price Per Tray
Number of Trays
Shipped Within
Cases to Order
6.11 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 models 560, 560A, 568.
  • Sturdy construction.
Free Shipping on orders over $99.*


Price Per Cover
Number of Covers
Shipped Within
Cases to Order
38.89 each 24 hours
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Shipping Policy





#4277

#4277 Aprilaire Water Distribution Tray

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



#4277 Aprilaire Water Distribution Tray

  • For use with Aprilaire models 560, 560A & 568.
  • Distributes water evenly to all portions of the evaporative panel.
  • Attaches 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.
Free Shipping on orders over $99.*


Price Per Tray
Number of Trays
Shipped Within
Cases to Order
9.12 each 24 hours
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Shipping Policy





#4405

#4405 Aprilaire Float Cover

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



#4405 Aprilaire Float Cover

  • For use with Aprilaire models 400, 400A, 400M and 600.
  • Acts as a guide to keep the two #4406 Float Assemblies in place as they rise and drop.
Free Shipping on orders over $99.*


Price Per Cover
Number of Covers
Shipped Within
Cases to Order
5.07 each 24 hours
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Shipping Policy





#4406

#4406 Aprilaire Float Assembly

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



#4406 Aprilaire Float Assembly

  • For use with Aprilaire models 400, 400A, 400M and 600.
  • 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.
Free Shipping on orders over $99.*


Price Per Assembly
Number of Assemblies
Shipped Within
Cases to Order
4.56 each 24 hours
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Shipping Policy





#4640

#4640 Aprilaire Scale Control Insert

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



#4640 Aprilaire Scale Control Insert

  • For use with Aprilaire model 500.
  • This is the u-shaped component which encases the Water Panel Evaporator.
  • Directs any mineral which builds up back into the evaporative panel.
  • Prevents water from leaving the evaporative section and entering another portion of the humidifier.
Free Shipping on orders over $99.*


Price Per Insert
Number of Inserts
Shipped Within
Cases to Order
5.58 each 24 hours
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Shipping Policy





#4740

#4740 Aprilaire Relay for 700A/700M

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



Aprilaire #4740 Relay for 700A / 700M Humidifiers.

  • Fits Aprilaire models 700, 700A & 700M manufactured starting in 2008.
  • Models made before 2008 use part 4238.
  • Fan Relay that powers up the circulator fan.
Free Shipping on orders over $99.*


Price Per Relay
Number of Relays
Shipped Within
Cases to Order
9.26 each 24 hours
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Shipping Policy



Humidifier Accessories



PC-2

PC-2 Humidifier Cleaning Cartridge (2 Pack)

Protec

Protec Cleaning Cartridge

  • Cleaning cartridge helps keep humidifier tank cleaner, longer.
  • Continuous protection against slimy buildup in humidifier.
  • 2 cartridges per package.
  • Use 1 cartridge for every 2 gallons of water tank capacity.
  • Simply drop in tank for fresh, clean mist.
  • Works in most cool mist humidifiers.
  • For optimum performance, replace cartridge every 30 days.
Free Shipping on orders over $99.*


Price Per Cartridge
Number of Packages
Shipped Within
Cases to Order
3.99 each 24 hours
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Shipping Policy