Pad Refills (Pack of 6 Pads) - 21" x 22 1/2" x 1"PACK 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.

these can be purchased in any conceivable size

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

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

Can be ordered in packages of 2 each only

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

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

such as dust

oxidation and deterioration

degrade and restrict air flow

the A+2000 uses stage loading

Filtering inserts are shipped in an easily stored packet

Unlike some permanent custom air filters