21x21x1 MERV 10 AC Furnace Filters Number Per Box:6 Important Note: Almost all furnace

Important Note: Almost all furnace air filters have a different Actual Size (the exact dimensions) than Nominal Size (the name)

Nordic Pure chose to follow the industry standard

MERV 8 furnace air conditioner filters are comparable to HVAC filters with the rating of MPR 600

Nordic Pure 14x25x2 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

MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200-2400

21x21x1 MERV 10 AC Furnace Filters Number Per Box:6 Important Note: Almost all furnaceActual Size: 20 3 4 x 20 3 4 x 3 4 (20. 75 x 20. 75 x 0. 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 MERV 10 Pleated AC Furnace Air Filters