Pad Refills (Pack of 6 Pads) - 21" x 22 1/2" x 1" Quantity:Default Includes one Frame and PACK

Includes one Frame and PACK of 6 pads

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

This design enables A+2000 custom air filters to maintain performance over the years

Filtering inserts are shipped in an easily stored packet

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

Pad Refills (Pack of 6 Pads) - 21" x 22 1/2" x 1" Quantity:Default Includes one Frame and PACKPACK 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.