20x25x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 17x22x1 Replaced approximately every 30 to

Replaced approximately every 30 to 60 days for fresh clean air

Actual Size: 12 x 14 x 3/4 (12 x 14 x 0

Nordic Pure 16x20x2 MERV 12 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

Nordic Pure 16x25x4 Pleated Air Filters MERV 12 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home

Nordic Pure 18x18x2 MERV 14 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home

20x25x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 17x22x1 Replaced approximately every 30 toActual Size: 19 1 2 x 24 1 2 x 1 2 (19. 5 x 24. 5 x 0. 5) Captures large airborne particles like household dust, allergens, mold spores, pet dander and smoke particles. Ideal for customers with apartments, window units, campers, and RVs. Antimicrobial high capacity, polyester material with an added layer of smooth poly blend electrostatic filter media For filter installation the air enters thru the fuzzy, high loft side and exits out the thinner,