Merv 8 Pleated Air Filter - 7 7/8" x 31 7/8" x 1" Quantity:12-pack This is designed to fit

This is designed to fit into 1" Return Air Grilles

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

Either way

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

And there are no metal parts that could lead to corrosion or oxidation within the filter

Merv 8 Pleated Air Filter - 7 7/8" x 31 7/8" x 1" Quantity:12-pack This is designed to fitAny 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.