A+2000 Washable Electrostatic Permanent Custom Air Filter - 9 1/2" x 9 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

built to last a lifetime

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

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the greater it's resistance to airflow

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

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

Either way

Includes one Frame and PACK of 6 pads

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

some just refer to them as electrostatic filters

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