Pad Refills (Pack of 6 Pads) - 20" x 20" x 2" Quantity:Default Filtering inserts are shipped in

Filtering inserts are shipped in an easily stored packet

And there are no metal parts that could lead to corrosion or oxidation within the filter

Includes one Frame and PACK of 6 pads

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

the greater it's resistance to airflow

Pad Refills (Pack of 6 Pads) - 20" x 20" x 2" Quantity:Default Filtering inserts are shipped inPACK 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.