A+2000 Washable Electrostatic Permanent Custom Air Filter - 13 3/4" x 18 3/4" x 1" Quantity:Default and the greater the pressure

and the greater the pressure drop it creates

Filtering inserts are anti-microbial and are more efficient in capturing particles

This is designed to fit into 1" Return Air Grilles

To order washable electrostatic custom air filters you just need to know the size of the current air filter

You may know them as washable air or even permanent air filters

A+2000 Washable Electrostatic Permanent Custom Air Filter - 13 3/4" x 18 3/4" x 1" Quantity:Default and the greater the pressureYou 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