A+2000 Washable Electrostatic Permanent Custom Air Filter - 17 1/4" x 27 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

A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter

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In general

They are easy to clean by simply backwashing every month with cold water so you don‰۪t need expensive cleaners

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

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

such as dust

This is designed to fit into 1" Return Air Grilles

Either way

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