NaturalAire 13-1/2 in. W X 21-5/8 in. H X 1 in. D Synthetic 8 MERV Pleated Air Filter 1 pk, Pack of 12 LEVELS Open End Width: 1-11/32 in

Open End Width: 1-11/32 in

Model Number: 10579

dust-free or lightly sanded surface

Replacement lens

Model Number: 63115

NaturalAire 13-1/2 in. W X 21-5/8 in. H X 1 in. D Synthetic 8 MERV Pleated Air Filter 1 pk, Pack of 12 LEVELS Open End Width: 1-11/32 inThe MERV 8 rating means it is third party certified to effectively reduce common indoor air pollutants such as household dust, pollen, dander and lint. MERV ratings provide a standard comparison of air filter performance. A higher MERV rating signifies greater efficiency and increased protection against airborne particles. The clay coated filter frame and wire backing provide durability throughout the filter's life. The NaturalAire clean essential