A+2000 Washable Electrostatic Permanent Custom Air Filter - 14" x 17 3/4" x 1" Quantity:Default some just refer to them

some just refer to them as electrostatic filters

if not you can measure it or check the HVAC unit and the owner‰۪s manual

Eliminates Filter Bypass

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

For use in grease hoods and fryers

A+2000 Washable Electrostatic Permanent Custom Air Filter - 14" x 17 3/4" 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