A+2000 Washable Electrostatic Permanent Custom Air Filter - 21 1/2" x 23 1/4" 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

Can be ordered in packages of 2 each only

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compact electronic power supply

PLEASE NOTE: Dimensions listed are HxWxD

mold and other fungi

Produces no ozone or aldehydes

and long service life which reduces HVAC equipment maintenance and energy costs

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

if not you can measure it or check the HVAC unit and the owner‰۪s manual

from the air stream

precisely designed to prevent flame from penetrating the filters and as the grease laden air passes through the filter is collects the grease

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