20x20x4 (3 5/8) Pleated MERV 10 Air Filters Number Per Box:6 Actual Size: 13 1/2 x

Actual Size: 13 1/2 x 19 1/2 x 1 3/4 (13

Actual Size: 20 x 21 x 3/4 (20 x 21 x 0

This item is made to replace the Lennox X6673 and X6675 media air filters and ideal for helping keep equipment working efficiently and reducing odors

Nordic Pure 18x25x2 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

Ideal for normal air filtration and will help those with mild allergies

20x20x4 (3 5/8) Pleated MERV 10 Air Filters Number Per Box:6 Actual Size: 13 1/2 xActual Size: 19 1 2 x 19 1 2 x 3 5 8 (19. 5 x 19. 5 x 3. 63) Removes pollen, smoke particles, pet dander, bacteria, allergens, mold, virus carriers, and other contaminants. If you are replacing a Honeywell or Lennox 20x20x4 or an air filter with an MPR rating with an actual depth of 4 3 8, please see our 20x20x5 (4 3 8 actual depth) Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 10 is