Merv 13 Pleated Air Filter - 9 1/2" x 21 1/2" x 1"Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop, and long service life which reduces HVAC equipment maintenance and energy costs. 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.

so it can provide a lifetime of dependable service

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

28X Increased Efficiency

This is designed to fit into 1" Return Air Grilles

is an easy

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

we even have the odd sizes

and long service life which reduces HVAC equipment maintenance and energy costs

degrade and restrict air flow

some just refer to them as electrostatic filters

Kills bacteria

the A+2000 uses no foam that may clog