Pad Refills (Pack of 6 Pads) - 23 1/4" x 23 3/8" x 3/4" Quantity:Default They are easy to install

They are easy to install with custom air filters made to the sizes that you specify

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

Either way

Includes one Frame and PACK of 6 pads

oxidation and deterioration

Pad Refills (Pack of 6 Pads) - 23 1/4" x 23 3/8" x 3/4" Quantity:Default They are easy to installPACK 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.