Merv 11 Pleated Air Filter - 15" x 20" x 1" Quantity:12-pack degrade and restrict air flow

degrade and restrict air flow

the greater it's resistance to airflow

we even have the odd sizes

some just refer to them as electrostatic filters

built to last a lifetime

Merv 11 Pleated Air Filter - 15" x 20" x 1" Quantity:12-pack degrade and restrict air flowAny 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.