DUPONT Vent Filter Installation Instructions

  1. Remove Register Vent.

  2. If smaller than 4" x 12" trim filter material using household scissors. Measure your vent register for correct trim size.
    Note: Most vent registers are 2-1/4" x 12", 4" x 10" or 4" x 12".

  3. Insert filter material into register bottom.

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