A+2000 Washable Electrostatic Permanent Custom Air Filter - 11 1/2" x 28 3/4" 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

The secret behind the A+2000‰۪s custom air filters performance is the patented stage loading/peak and valley design

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

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

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

oxidation and deterioration

some just refer to them as electrostatic filters

the A+2000 uses no foam that may clog

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

Available in packs of 4