A+2000 Washable Electrostatic Permanent Custom Air Filter - 23" x 36" x 1" Quantity:Default with each stage capturing progressively

with each stage capturing progressively smaller particles inside the filter

so it can provide a lifetime of dependable service

Filtering inserts are shipped in an easily stored packet

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

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

A+2000 Washable Electrostatic Permanent Custom Air Filter - 23" x 36" x 1" Quantity:Default with each stage capturing progressivelyYou 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