Merv 8 Pleated Air Filter - 18 1/8" x 22 3/8" x 1" Quantity:12-pack The "Practical Pleat" media is

The "Practical Pleat" media is up to 28 times more effective at capturing particles than standard fiberglass panel filters

the greater it's resistance to airflow

degrade and restrict air flow

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

from the air stream

Merv 8 Pleated Air Filter - 18 1/8" x 22 3/8" x 1" Quantity:12-pack The "Practical Pleat" media isAny 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.