A+2000 Washable Electrostatic Permanent Custom Air Filter - 14 7/8" x 21 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

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The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

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with each stage capturing progressively smaller particles inside the filter

This design enables A+2000 custom air filters to maintain performance over the years

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

oxidation and deterioration

Includes one Frame and PACK of 6 pads

from the air stream

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

Unlike some permanent custom air filters

Available in packs of 4