Pad and Frame Air Filter (1 Frame and 6 Pads) - 18 1/2" x 21 7/8" 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

The SpeedLight䋢 Jr

Can be ordered in packages of 2 each only

with each stage capturing progressively smaller particles inside the filter

This design enables A+2000 custom air filters to maintain performance over the years

This is designed to fit into 1" Return Air Grilles

Produces no ozone or aldehydes

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

Keeps HVAC system cleaner and more efficient

viruses and mold

They are easy to install with custom air filters made to the sizes that you specify

One way to overcome this problem is to increase the surface area of the filter media

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