Pad and Frame Air Filter (1 Frame and 6 Pads) - 20" x 21 1/4" x 1" Quantity:Default 28X Increased Efficiency

28X Increased Efficiency

oxidation and deterioration

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

and long service life which reduces HVAC equipment maintenance and energy costs

You may know them as washable air or even permanent air filters

Pad and Frame Air Filter (1 Frame and 6 Pads) - 20" x 21 1/4" x 1" Quantity:Default 28X Increased EfficiencyIncludes 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