21 1/4x23 1/4x1 Exact MERV 12 AC Furnace Filters Number Per Box:6 Pure Carbon Pleated AC filters

Pure Carbon Pleated AC filters are manufactured using a heavy duty

Actual Size: 19 1/2 x 23 1/2 x 3/4 (19

Actual Size: 11 1/2 x 26 1/2 x 3/4 (11

Nordic Pure 20x30x2 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

the efficiency of all air filters is rated according to the same criteria as set forth by ASHRAE

21 1/4x23 1/4x1 Exact MERV 12 AC Furnace Filters Number Per Box:6 Pure Carbon Pleated AC filtersActual Size: 21 1 4 x 23 1 4 x 3 4 (21. 25 x 23. 25 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores and other contaminants. Ideal for high efficiency air filtration and will help those with moderate allergies and asthma. Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 12 is equivalent to MPR 1500 1900 Made in the USA. Nordic