A+2000 Washable Electrostatic Permanent Custom Air Filter - 20 1/4" x 36 1/4" x 1" Quantity:Default is an easy

is an easy

UL/ULC listed

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

oxidation and deterioration

28X Increased Efficiency

A+2000 Washable Electrostatic Permanent Custom Air Filter - 20 1/4" x 36 1/4" x 1" Quantity:Default is an easyYou 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