A+2000 Washable Electrostatic Permanent Custom Air Filter - 20 7/8" x 30 7/8" x 1" Quantity:Default A higher MERV rating means

A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter

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

This is designed to fit into 1" Return Air Grilles

the more efficient a filter is at removing particles

Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop

A+2000 Washable Electrostatic Permanent Custom Air Filter - 20 7/8" x 30 7/8" x 1" Quantity:Default A higher MERV rating meansYou 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