Pad Refills (Pack of 6 Pads) - 21 1/2" x 23 1/4" x 3/4"PACK 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.

these can be purchased in any conceivable size

PACK of 6 pads for Pad and Frame Air Filters

than standard fiberglass filters purchased at retail outlets

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

28X Increased Efficiency

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

oxidation and deterioration

we even have the odd sizes

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

and long service life which reduces HVAC equipment maintenance and energy costs

some just refer to them as electrostatic filters

high quality Air Filters to you