A+2000 Washable Electrostatic Permanent Custom Air Filter - 17 1/2" x 22" 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

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The unit also includes a magnetic mounting bracket for optional installation inside air handlers

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

And there are no metal parts that could lead to corrosion or oxidation within the filter

The permanent frame is constructed of space-age plastics that are resistant to corrosion

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

Filtering inserts are shipped in an easily stored packet

One way to overcome this problem is to increase the surface area of the filter media

Available in packs of 4

the A+2000 uses no foam that may clog