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
Nordic Pure MERV 10 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments
Nordic Pure 18x18x1 MERV 13 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
Actual Size: 9 1/2 x 15 1/2 x 3/4 (9
20x35x2 Pleated MERV 10 Air Filters Number Per Box:3 If you are replacing aActual Size: 19 1 2 x 34 1 2 x 1 3 4 (19. 5 x 34. 5 x 1. 75) Removes pollen, smoke particles, pet dander, bacteria, allergens, mold, virus carriers, and other contaminants. Ideal for normal air filtration and will help those with mild allergies. Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 10 is equivalent to MPR 1000 Made in the USA. Nordic Pure 20x35x2 Trane Replacement RTU ( Roof Top Air