A+2000 Washable Electrostatic Permanent Custom Air Filter - 17 1/2" x 25 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

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

åÊWe look forward to delivering our American-made

The "Practical Pleat" media is up to 28 times more effective at capturing particles than standard fiberglass panel filters

so it can provide a lifetime of dependable service

PLEASE NOTE: Dimensions listed are HxWxD

This design enables A+2000 custom air filters to maintain performance over the years

Either way

Simply cut a hole

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

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

Available in packs of 4

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