16x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 1 Pack HPS This universal bacterium is one

This universal bacterium is one of a kind and HIGHLY EFFICIENT simultaneously fixing nitrogen

this component provides unlimited adjustability to ensure the best cut for your product

This low-linting

Though new to growers

Current lead time projection is 45-60 days from payment received

16x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 1 Pack HPS This universal bacterium is oneImportant 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