Pad Refills (Pack of 6 Pads) - 21 1/2" x 23 1/2" x 1" Quantity:Default They are easy to clean

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

so it can provide a lifetime of dependable service

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

We look forward to delivering our American-made

and the greater the pressure drop it creates

Pad Refills (Pack of 6 Pads) - 21 1/2" x 23 1/2" x 1" Quantity:Default They are easy to cleanPACK 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.