13x21x1 Exact MERV 13 AC Furnace Filters Pure Carbon While different companies use different

While different companies use different scales to measure the air filter’s efficiency

but they WILL be strong

Nordic Pure’s 16x25x3 MERV 8 Air Bear Cub Replacement air filter is meant to replace the air condition filter for any system that requires a 3” depth

Nordic Pure 14x14x1 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

high efficiency systems that use HEPA filters

13x21x1 Exact MERV 13 AC Furnace Filters Pure Carbon While different companies use differentActual Size: 13 x 21 x 3 4 (13 x 21 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores, smog and other contaminants. Ideal for customers looking for superior filtration Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 13 is equivalent to MPR 2200 2400 Made in the USA. Nordic Pure MERV 13 Pleated AC Furnace Air Filters provide