Pad and Frame Air Filter (1 Frame and 6 Pads) - 20" x 20" x 3/4"Includes 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

PACK of 6 pads for Pad and Frame Air Filters

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

Can be ordered in packages of 2 each only

In general

Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop

oxidation and deterioration

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

Either way

And there are no metal parts that could lead to corrosion or oxidation within the filter

Includes one Frame and PACK of 6 pads

if not you can measure it or check the HVAC unit and the owner‰۪s manual

some just refer to them as electrostatic filters