A+2000 Washable Electrostatic Permanent Custom Air Filter - 31 7/8" x 31 7/8" 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

Finally they are factory made so you don‰۪t have to deal with the hassle of trying to cut and size your custom air filters and they come with a full warranty

A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter

In general

with each stage capturing progressively smaller particles inside the filter

28X Increased Efficiency

This is designed to fit into 1" Return Air Grilles

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

from the air stream

We look forward to delivering our American-made

Eliminates Filter Bypass

and the greater the pressure drop it creates

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