A+2000 Washable Electrostatic Permanent Custom Air Filter - 18 1/4" x 22 3/4" x 1" Quantity:Default They are easy to install

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

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

these can be purchased in any conceivable size

Eliminates Filter Bypass

if not you can measure it or check the HVAC unit and the owner‰۪s manual

A+2000 Washable Electrostatic Permanent Custom Air Filter - 18 1/4" x 22 3/4" x 1" Quantity:Default They are easy to installYou 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