A+2000 Washable Electrostatic Permanent Custom Air Filter - 13" x 15 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

In general

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

we even have the odd sizes

Produces no ozone or aldehydes

Grease Baffle Uses:

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

some just refer to them as electrostatic filters

Filtering inserts are shipped in an easily stored packet

high quality Air Filters to you

Instead of face loading (particles captured on the outer surface of the filter)