Pad Refills (Pack of 6 Pads) - 21 1/2" x 23 1/4" x 3/4" Quantity:Default Can be ordered in packages

Can be ordered in packages of 2 each only

the more efficient a filter is at removing particles

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

the A+2000 uses stage loading

28X Increased Efficiency

Pad Refills (Pack of 6 Pads) - 21 1/2" x 23 1/4" 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.