Merv 11 Pleated Air Filter - 16 1/2" x 25 1/2" x 1" Quantity:12-pack such as dust

such as dust

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

the greater it's resistance to airflow

Instead of face loading (particles captured on the outer surface of the filter)

28X Increased Efficiency

Merv 11 Pleated Air Filter - 16 1/2" x 25 1/2" x 1" Quantity:12-pack such as dustAny 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.