Pad Refills (Pack of 6 Pads) - 21 1/2" x 23 3/8" x 1" Quantity:Default the more efficient a filter

the more efficient a filter is at removing particles

In general

Our 304 Stainless Steel Grease Baffle filters are designed to hold up through the toughest conditions

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

Pad Refills (Pack of 6 Pads) - 21 1/2" x 23 3/8" x 1" Quantity:Default the more efficient a filterPACK 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.