A+2000 Washable Electrostatic Permanent Custom Air Filter - 20" x 36" x 1" Quantity:Default One way to overcome this

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

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To find the size the old unit should have sizing information printed on it

degrade and restrict air flow

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

A+2000 Washable Electrostatic Permanent Custom Air Filter - 20" x 36" x 1" Quantity:Default One way to overcome thisYou 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