16x24x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 2 Pack Ventilation Test clean parts per billion
Yard notes & kiln story
Description
16x24x4 (3 5 8) Furnace Air Filters MERV 12 Pleated Plus Carbon 2 Pack Ventilation Test clean parts per billion Test clean parts per billion Environment Low Gas Density Particles in indoor air are measured in microns Nordic Pure 16x24x4 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