Merv 13 Pleated Air Filter - 19 7/8" x 21 3/8" x 1" Quantity:12-pack Instead of face loading (particles

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

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

built to last a lifetime

Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop

One way to overcome this problem is to increase the surface area of the filter media

Merv 13 Pleated Air Filter - 19 7/8" x 21 3/8" x 1" Quantity:12-pack Instead of face loading (particlesAny 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.