16x20x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack spl_hf first cause of unhealthy environment

first cause of unhealthy environment

Nordic Pure 16x20x4 Plus Carbon Air Filters MERV 13 are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that will attract and capture most airborne particulates in your home

Square QPlugs are available in 50 count and 100 count bags

Includes 6

pH sampling assembly

16x20x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack spl_hf first cause of unhealthy environmentImportant 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