A+2000 Washable Electrostatic Permanent Custom Air Filter - 12" x 36" 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

these can be purchased in any conceivable size

Finally they are factory made so you don‰۪t have to deal with the hassle of trying to cut and size your custom air filters and they come with a full warranty

with each stage capturing progressively smaller particles inside the filter

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

the greater it's resistance to airflow

such as dust

You may know them as washable air or even permanent air filters

we even have the odd sizes

from the air stream

and the greater the pressure drop it creates

One way to overcome this problem is to increase the surface area of the filter media

Unlike some permanent custom air filters