Pad Refills (Pack of 6 Pads) - 23 1/4" x 23 1/4" x 3/4" Quantity:Default these can be purchased in

these can be purchased in any conceivable size

built to last a lifetime

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

In general

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

Pad Refills (Pack of 6 Pads) - 23 1/4" x 23 1/4" x 3/4" Quantity:Default these can be purchased inPACK 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.