Pad Refills (Pack of 6 Pads) - 21" x 23 1/8" x 3/4" Quantity:Default PACK of 6 pads for

PACK of 6 pads for Pad and Frame Air Filters

They are easy to clean by simply backwashing every month with cold water so you don‰۪t need expensive cleaners

the greater it's resistance to airflow

A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter

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) - 21" x 23 1/8" x 3/4" Quantity:Default PACK of 6 pads forPACK 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.