Pad and Frame Air Filter (1 Frame and 6 Pads) - 17 1/2" x 23 1/2" 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 "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products

built to last a lifetime

than standard fiberglass filters purchased at retail outlets

28X Increased Efficiency

Either way

Includes one Frame and PACK of 6 pads

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

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

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

Filtering inserts are shipped in an easily stored packet

and the greater the pressure drop it creates

the A+2000 uses no foam that may clog