Pad Refills (Pack of 6 Pads) - 25" x 25" x 2" Quantity:Default the more efficient a filter

the more efficient a filter is at removing particles

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

degrade and restrict air flow

Instead of face loading (particles captured on the outer surface of the filter)

åÊWe look forward to delivering our American-made

Pad Refills (Pack of 6 Pads) - 25" x 25" x 2" Quantity:Default the more efficient a filterPACK 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.