A+2000 Washable Electrostatic Permanent Custom Air Filter - 13" x 21 3/8" 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 secret behind the A+2000‰۪s custom air filters performance is the patented stage loading/peak and valley design

The permanent frame is constructed of space-age plastics that are resistant to corrosion

with each stage capturing progressively smaller particles inside the filter

Includes one Frame and PACK of 6 pads

A+2000 Washable Electrostatic Permanent Custom Air Filter - 13" x 21 3/8" 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