Pad Refills (Pack of 6 Pads) - 23 3/4" x 23 3/4" x 1" Quantity:Default This is a 5" MERV

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

Unlike some permanent custom air filters

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

degrade and restrict air flow

Instead of face loading (particles captured on the outer surface of the filter)

Pad Refills (Pack of 6 Pads) - 23 3/4" x 23 3/4" x 1" Quantity:Default This is a 5" MERVPACK 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.