Merv 11 Pleated Air Filter - 12 1/2" x 14 1/8" x 2" 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

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

Unlike some permanent custom air filters

than standard fiberglass filters purchased at retail outlets

Merv 11 Pleated Air Filter - 12 1/2" x 14 1/8" x 2" 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.