A+2000 Washable Electrostatic Permanent Custom Air Filter - 21 3/4" x 25 3/4" x 1" Quantity:Default the A+2000 uses no foam

the A+2000 uses no foam that may clog

so it can provide a lifetime of dependable service

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

Keeps HVAC system cleaner and more efficient

Magnetic mount holds lamp in place

A+2000 Washable Electrostatic Permanent Custom Air Filter - 21 3/4" x 25 3/4" x 1" Quantity:Default the A+2000 uses no foamYou 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