A+2000 Washable Electrostatic Permanent Custom Air Filter - 18 3/4" x 21 3/4" x 1" Quantity:Default You may know them as

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

Includes one Frame and PACK of 6 pads

than standard fiberglass filters purchased at retail outlets

and the greater the pressure drop it creates

the A+2000 uses stage loading

A+2000 Washable Electrostatic Permanent Custom Air Filter - 18 3/4" x 21 3/4" x 1" Quantity:Default You may know them asYou may know them as washable air or even permanent air filters; some just refer to them as electrostatic filters. Either way, the "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products, built to last a lifetime. Unlike some permanent custom air filters, the A+2000 uses no foam that may clog, degrade and restrict air flow, so it can provide a lifetime of dependable service. And there are no metal parts that could