Merv 13 Pleated Air Filter - 19 7/8" x 21 3/8" x 1" Quantity:12-pack The "Practical Pleat" contains over

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

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

And there are no metal parts that could lead to corrosion or oxidation within the filter

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

Includes one Frame and PACK of 6 pads

Merv 13 Pleated Air Filter - 19 7/8" x 21 3/8" x 1" Quantity:12-pack The "Practical Pleat" contains overAny 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.