A+2000 Washable Electrostatic Permanent Custom Air Filter - 23 1/4" x 29 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 secret behind the A+2000‰۪s custom air filters performance is the patented stage loading/peak and valley design

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

the greater it's resistance to airflow

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

Either way

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

from the air stream

the A+2000 uses stage loading

some just refer to them as electrostatic filters

Unlike some permanent custom air filters