19.75x21x0.75 Exact Size MERV 14 Air Filter 15x19x1 HVAC systems should be rated

HVAC systems should be rated to handle filters of MERV 15 and above

Nordic Pure 18x24x4 MERV 12 Pleated Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

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

along with a Nordic Pure MERV 8 rating

19.75x21x0.75 Exact Size MERV 14 Air Filter 15x19x1 HVAC systems should be ratedActual Size: 19 3 4 x 21 x 3 4 (19. 75 x 21 x 0. 75) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and removed. Ideal for customers with health problems or for commercial units which support a rating of MERV 14 and above Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 14 is equivalent to MPR 2800 Made in the USA. Nordic Pure MERV 14