Merv 8 Pleated Air Filter - 17 1/2" x 19 5/8" x 1" Quantity:12-pack A higher MERV rating means

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

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

Filtering inserts are anti-microbial and are more efficient in capturing particles

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

Merv 8 Pleated Air Filter - 17 1/2" x 19 5/8" x 1" Quantity:12-pack A higher MERV rating meansAny 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.