A+2000 Washable Electrostatic Permanent Custom Air Filter - 16 1/2" x 21 1/2" x 1"You 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

The secret behind the A+2000‰۪s custom air filters performance is the patented stage loading/peak and valley design

Then Order custom air filters from us today

In general

oxidation and deterioration

we even have the odd sizes

Either way

degrade and restrict air flow

if not you can measure it or check the HVAC unit and the owner‰۪s manual

the A+2000 uses stage loading

from the air stream

Eliminates Filter Bypass

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