16x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 6 Pack Lighting & Electrical Components and rebuilt to support the

and rebuilt to support the demands of the horticulture industry

Assembly required

Light controller is required

Cloning machines

economical

16x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 6 Pack Lighting & Electrical Components and rebuilt to support theImportant 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