Pad Refills (Pack of 6 Pads) - 23" x 24" x 1" Quantity:Default The permanent frame is constructed

The permanent frame is constructed of space-age plastics that are resistant to corrosion

with each stage capturing progressively smaller particles inside the filter

the "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products

Water resistant lamp connection

They are constructed from 304 Stainless Steel material formed to exact specifications

Pad Refills (Pack of 6 Pads) - 23" x 24" x 1" Quantity:Default The permanent frame is constructedPACK 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.