Pad and Frame Air Filter (1 Frame and 6 Pads) - 21 1/2" x 21 3/4" x 3/4" Quantity:Default UL/ULC listed

UL/ULC listed

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

built to last a lifetime

Simply cut a hole

Pad and Frame Air Filter (1 Frame and 6 Pads) - 21 1/2" x 21 3/4" x 3/4" Quantity:Default UL/ULC listedIncludes one Frame and PACK of 6 pads The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts. The permanent frame is constructed of space age plastics that are resistant to corrosion, oxidation and deterioration. 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