A+2000 Washable Electrostatic Permanent Custom Air Filter - 21" x 36 3/4" 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

To find the size the old unit should have sizing information printed on it

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

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Some of the other benefits of A+2000 custom air filters include the following

This is designed to fit into 1" Return Air Grilles

We can make custom air filters in heights and widths ranking from 6 inches to 36 7/8 inches with increments in 8ths of an inch

is an easy

Produces no ozone or aldehydes

Includes one Frame and PACK of 6 pads

Because we specialize in custom air filters

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

Available in packs of 4