Pad Refills (Pack of 6 Pads) - 20 1/4" x 21 3/4" x 1" Quantity:Default oxidation and deterioration

oxidation and deterioration

the greater it's resistance to airflow

It is designed to inhibit growth of bacteria

some just refer to them as electrostatic filters

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

Pad Refills (Pack of 6 Pads) - 20 1/4" x 21 3/4" x 1" Quantity:Default oxidation and deteriorationPACK 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.