Merv 8 Pleated Air Filter - 16 1/2" x 21 1/2" x 1" Quantity:12-pack Includes one Frame and PACK

Includes one Frame and PACK of 6 pads

oxidation and deterioration

The A+2000 line is easy to maintain with no need to buy oils or adhesives to enhance effectiveness

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

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

Merv 8 Pleated Air Filter - 16 1/2" x 21 1/2" x 1" Quantity:12-pack Includes one Frame and PACKAny 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.