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

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

such as dust

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

They are easy to install with custom air filters made to the sizes that you specify

They are easy to clean by simply backwashing every month with cold water so you don‰۪t need expensive cleaners

Pad Refills (Pack of 6 Pads) - 17 1/2" x 23" 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.