A+2000 Washable Electrostatic Permanent Custom Air Filter - 22" x 27" x 1" Quantity:Default One way to overcome this

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

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

To find the size the old unit should have sizing information printed on it

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

the greater it's resistance to airflow

A+2000 Washable Electrostatic Permanent Custom Air Filter - 22" x 27" x 1" Quantity:Default One way to overcome thisYou 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