Pad Refills (Pack of 6 Pads) - 17 1/4" x 26 1/8" x 1" Quantity:Default with each stage capturing progressively

with each stage capturing progressively smaller particles inside the filter

we even have the odd sizes

Because we specialize in custom air filters

Unlike some permanent custom air filters

We can make custom air filters in heights and widths ranking from 6 inches to 36 7/8 inches with increments in 8ths of an inch

Pad Refills (Pack of 6 Pads) - 17 1/4" x 26 1/8" x 1" Quantity:Default with each stage capturing progressivelyPACK 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.