A+2000 Washable Electrostatic Permanent Custom Air Filter - 16 1/2" x 19 1/2" 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

these can be purchased in any conceivable size

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

with each stage capturing progressively smaller particles inside the filter

This is designed to fit into 1" Return Air Grilles

The A+2000 line is easy to maintain with no need to buy oils or adhesives to enhance effectiveness

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

Because we specialize in custom air filters

Includes one Frame and PACK of 6 pads

the A+2000 uses stage loading

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

and the greater the pressure drop it creates

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