A+2000 Washable Electrostatic Permanent Custom Air Filter - 13 1/8" x 23 1/8" 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

Filtering inserts are anti-microbial and are more efficient in capturing particles

so it can provide a lifetime of dependable service

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In general

They are easy to clean by simply backwashing every month with cold water so you don‰۪t need expensive cleaners

You may know them as washable air or even permanent air filters

from the air stream

the A+2000 uses stage loading

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

and the greater the pressure drop it creates

Filtering inserts are shipped in an easily stored packet

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