Includes front and rear pads for inner housing. These white pads measure 20½ x 7 x ½". They are mounted with spray-on adhesive (not included).

Includes foam strip for back of outer housing, length 21 x ¾ x ¼. This foam strip has a peel and stick back. And replaces the pink pad on earlier models or a similar foam strip on the new 2200.

Also includes a white pad for the early style door as well as a foam strip for new style door. The white pad for the early model door replaces the pink pad. This white pad measures 22 x 8½ x ½". And this is also affixed with spray-on adhesive (not included).

For the new model 2200 door, a rectangular shaped foam strip is included. This foam is 1 x ½" and fits in a rectangular channel measuring 21¾; x 8½" OD.

This kit replaces Aprilaire 4345 and 4233.