A+2000 Washable Electrostatic Permanent Custom Air Filter - 19 1/2" x 24 1/2" x 1" Quantity:Default Either way

Either way

Instead of face loading (particles captured on the outer surface of the filter)

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

The secret behind the A+2000‰۪s custom air filters performance is the patented stage loading/peak and valley design

A+2000 Washable Electrostatic Permanent Custom Air Filter - 19 1/2" x 24 1/2" x 1" Quantity:Default Either wayYou 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