A+2000 Washable Electrostatic Permanent Custom Air Filter - 12 1/2" x 21" x 1" Quantity:Default some just refer to them

some just refer to them as electrostatic filters

Can be ordered in packages of 2 each only

We can make custom air filters in heights and widths ranking from 6 inches to 36 7/8 inches with increments in 8ths of an inch

the A+2000 uses no foam that may clog

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

A+2000 Washable Electrostatic Permanent Custom Air Filter - 12 1/2" x 21" x 1" Quantity:Default some just refer to themYou 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