A+2000 Washable Electrostatic Permanent Custom Air Filter - 16 1/2" x 20 1/2" x 1"You 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

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

than standard fiberglass filters purchased at retail outlets

so it can provide a lifetime of dependable service

Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop

You never have to hassle with disposable filters that will end up in a landfill again

28X Increased Efficiency

This is designed to fit into 1" Return Air Grilles

we even have the odd sizes

They are easy to install with custom air filters made to the sizes that you specify

Unlike some permanent custom air filters

the A+2000 uses no foam that may clog

high quality Air Filters to you