Merv 8 Pleated Air Filter - 11 3/4" x 11 3/4" 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

This is designed to fit into 1" Return Air Grilles

degrade and restrict air flow

and the greater the pressure drop it creates

The permanent frame is constructed of space-age plastics that are resistant to corrosion

Merv 8 Pleated Air Filter - 11 3/4" x 11 3/4" 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.