Pad Refills (Pack of 6 Pads) - 18" x 20" x 3/4" Quantity:Default Can be ordered in packages

Can be ordered in packages of 2 each only

Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop

Either way

Because we specialize in custom air filters

You may know them as washable air or even permanent air filters

Pad Refills (Pack of 6 Pads) - 18" x 20" x 3/4" Quantity:Default Can be ordered in packagesPACK 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.