Merv 8 Pleated Air Filter - 19 1/2" x 21 1/2" x 1" Quantity:12-pack The permanent frame is constructed

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

PLEASE NOTE: Dimensions listed are HxWxD

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

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

oxidation and deterioration

Merv 8 Pleated Air Filter - 19 1/2" x 21 1/2" x 1" Quantity:12-pack The permanent frame is constructedAny 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.