Merv 11 Pleated Air Filter - 20" x 20" x 1" Quantity:4-pack To learn more

To learn more

Can be ordered in packages of 2 each only

these can be purchased in any conceivable size

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

This is designed to fit into 1" Return Air Grilles

Merv 11 Pleated Air Filter - 20" x 20" x 1" Quantity:4-pack To learn moreAny 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.