Pad and Frame Air Filter (1 Frame and 6 Pads) - 9 3/4" x 11 7/8" x 1" Quantity:Default some just refer to them

some just refer to them as electrostatic filters

To learn more

such as dust

Either way

Pad and Frame Air Filter (1 Frame and 6 Pads) - 9 3/4" x 11 7/8" x 1" Quantity:Default some just refer to themIncludes 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