Merv 13 Pleated Air Filter - 21 3/8" x 31 1/2" x 2"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.

To find the size the old unit should have sizing information printed on it

offers the quickest installation on the Planet

UL/ULC listed

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

such as dust

This is designed to fit into 1" Return Air Grilles

To order washable electrostatic custom air filters you just need to know the size of the current air filter

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

Produces no ozone or aldehydes

Magnetic mount holds lamp in place

Includes one Frame and PACK of 6 pads

The permanent frame is constructed of space-age plastics that are resistant to corrosion