Pad and Frame Air Filter (1 Frame and 6 Pads) - 18" x 20" x 3/4" Quantity:Default degrade and restrict air flow

degrade and restrict air flow

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

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

some just refer to them as electrostatic filters

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

Pad and Frame Air Filter (1 Frame and 6 Pads) - 18" x 20" x 3/4" Quantity:Default degrade and restrict air flowIncludes one Frame and PACK of 6 pads The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts. The permanent frame is constructed of space age plastics that are resistant to corrosion, oxidation and deterioration. 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