Pad Refills (Pack of 6 Pads) - 6" x 13 7/8" x 1" Quantity:Default The permanent frame is constructed

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

if not you can measure it or check the HVAC unit and the owner‰۪s manual

Filtering inserts are shipped in an easily stored packet

PACK of 6 pads for Pad and Frame Air Filters

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Pad Refills (Pack of 6 Pads) - 6" x 13 7/8" x 1" Quantity:Default The permanent frame is constructedPACK 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.