A+2000 Washable Electrostatic Permanent Custom Air Filter - 17 5/8" x 21" x 1" Quantity:Default The "Practical Pleat" media is

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

In general

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

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 - 17 5/8" x 21" x 1" Quantity:Default The "Practical Pleat" media isYou 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