Merv 8 Pleated Air Filter - 7" x 7" x 1" Quantity:12-pack This is a 5" MERV

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

and long service life which reduces HVAC equipment maintenance and energy costs

degrade and restrict air flow

some just refer to them as electrostatic filters

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

Merv 8 Pleated Air Filter - 7" x 7" x 1" Quantity:12-pack This is a 5" MERVAny 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.