A+2000 Washable Electrostatic Permanent Custom Air Filter - 6" x 21" 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 secret behind the A+2000‰۪s custom air filters performance is the patented stage loading/peak and valley design

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

so it can provide a lifetime of dependable service

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the greater it's resistance to airflow

28X Increased Efficiency

We can make custom air filters in heights and widths ranking from 6 inches to 36 7/8 inches with increments in 8ths of an inch

The A+2000 line is easy to maintain with no need to buy oils or adhesives to enhance effectiveness

Because we specialize in custom air filters

the A+2000 uses stage loading

from the air stream

some just refer to them as electrostatic filters