A+2000 Washable Electrostatic Permanent Custom Air Filter - 15 7/8" x 15 7/8" x 1" Quantity:Default They are constructed from 304

They are constructed from 304 Stainless Steel material formed to exact specifications

oxidation and deterioration

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

Keeps HVAC system cleaner and more efficient

viruses and mold

A+2000 Washable Electrostatic Permanent Custom Air Filter - 15 7/8" x 15 7/8" x 1" Quantity:Default They are constructed from 304You 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