Merv 8 Pleated Air Filter - 21 1/2" x 23 1/2" x 1" Quantity:12-pack To learn more

To learn more

Either way

Includes one Frame and PACK of 6 pads

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

degrade and restrict air flow

Merv 8 Pleated Air Filter - 21 1/2" x 23 1/2" x 1" Quantity:12-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.