16x20x4 (3 5/8) Pleated MERV 15 Air Filters 2 Pack chillers-heaters-and-purification See the usage rates below

See the usage rates below

DERIVED FROM: Magnesium Phosphate

and other agricultural applications

Used in conjunction with Bloom Natural and DeuceDeuce

Nordic Pure 10x30x1 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

16x20x4 (3 5/8) Pleated MERV 15 Air Filters 2 Pack chillers-heaters-and-purification See the usage rates belowImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. If you are replacing a 4 3 8 depth 16x20x4 filter