16x20x4 (3 5/8) Pleated MERV 15 Air Filters 1 Pack Trimmers Suitable for cleaning equipment and

Suitable for cleaning equipment and tools

this results in a better-quality end-product as the natural properties are preserved during the harvesting process

which utilizes the Cal Check Solution to determine whether the probe is in need of cleaning or replacement

6 x PotPro™ | Platform

and bio-teas where microbial life is essential

16x20x4 (3 5/8) Pleated MERV 15 Air Filters 1 Pack Trimmers Suitable for cleaning equipment andImportant 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