Pad Refills (Pack of 6 Pads) - 17 3/4" x 17 3/4" x 1" Quantity:Default the more efficient a filter

the more efficient a filter is at removing particles

than standard fiberglass filters purchased at retail outlets

built to last a lifetime

the A+2000 uses stage loading

To order washable electrostatic custom air filters you just need to know the size of the current air filter

Pad Refills (Pack of 6 Pads) - 17 3/4" x 17 3/4" x 1" Quantity:Default the more efficient a filterPACK 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.