A+2000 Washable Electrostatic Permanent Custom Air Filter - 21 1/2" x 24" 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

PACK of 6 pads for Pad and Frame Air Filters

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

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

than standard fiberglass filters purchased at retail outlets

Some of the other benefits of A+2000 custom air filters include the following

the greater it's resistance to airflow

The A+2000 line is easy to maintain with no need to buy oils or adhesives to enhance effectiveness

Either way

Eliminates Filter Bypass

They are easy to install with custom air filters made to the sizes that you specify

some just refer to them as electrostatic filters

the A+2000 uses no foam that may clog