Pad Refills (Pack of 6 Pads) - 17 1/2" x 23 1/2" x 1" Quantity:Default To find the size the

To find the size the old unit should have sizing information printed on it

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such as dust

A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter

You may know them as washable air or even permanent air filters

Pad Refills (Pack of 6 Pads) - 17 1/2" x 23 1/2" x 1" Quantity:Default To find the size thePACK of 6 pads for Pad and Frame Air Filters Filtering inserts are anti microbial and are more efficient in capturing particles, such as dust, ragweed, pollen, etc., from the air stream, than standard fiberglass filters purchased at retail outlets. Filtering inserts are shipped in an easily stored packet.