Pad and Frame Air Filter (1 Frame and 6 Pads) - 21" x 23" x 1"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

these can be purchased in any conceivable size

the "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products

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

Then Order custom air filters from us today

In general

such as dust

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

degrade and restrict air flow

The permanent frame is constructed of space-age plastics that are resistant to corrosion

and the greater the pressure drop it creates

Instead of face loading (particles captured on the outer surface of the filter)

the A+2000 uses no foam that may clog