Pad Refills (Pack of 6 Pads) - 17 1/4" x 22" x 1" Quantity:Default And there are no metal

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

and long service life which reduces HVAC equipment maintenance and energy costs

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

You never have to hassle with disposable filters that will end up in a landfill again

Pad Refills (Pack of 6 Pads) - 17 1/4" x 22" x 1" Quantity:Default And there are no metalPACK 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.