20x25x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 2 Pack dis Maximize your yields in a

Maximize your yields in a 4x4 grow tent with the HLG BlackBird — Horticulture Lighting Group's flagship Scorpion Series LED designed for serious home growers who demand professional-grade performance

X-Large - Case of 12 sleeves (12 units per sleeve)

VermiSoil is designed as a complete potting soil for heavy fruiting and flowering plants

Keep your grow area clean to prevent the spread of pathogens throughout your crop

Volume: 1 gallon

20x25x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 2 Pack dis Maximize your yields in aImportant 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 20x25x4 filter