Pad Refills (Pack of 6 Pads) - 20" x 20" x 2" Quantity:Default This is designed to fit

This is designed to fit into 1" Return Air Grilles

Filtering inserts are anti-microbial and are more efficient in capturing particles

the greater it's resistance to airflow

The permanent frame is constructed of space-age plastics that are resistant to corrosion

Pad Refills (Pack of 6 Pads) - 20" x 20" x 2" Quantity:Default This is designed to fitPACK 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.