16x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 2 Pack Reflectors & Grow Lights Each bank can be turned

Each bank can be turned on and off depending on your grow room's needs

Features a super tough

Root Cleaner concentrate eliminates soil borne pests and pathogens

1 x  RJ12 T-Splitter

Maxicrop Soluble Seaweed Powder is an organic powder fertilizer made from dried Norwegian seaweed (Ascophyllum nodosum)

16x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 2 Pack Reflectors & Grow Lights Each bank can be turnedImportant 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