A+2000 Washable Electrostatic Permanent Custom Air Filter - 12" x 31 7/8" x 1" Quantity:Default with each stage capturing progressively

with each stage capturing progressively smaller particles inside the filter

Keeps HVAC system cleaner and more efficient

Produces no ozone or aldehydes

than standard fiberglass filters purchased at retail outlets

A+2000 Washable Electrostatic Permanent Custom Air Filter - 12" x 31 7/8" 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