Black Ops Replacement Pre-Filter 12 in x 48 in White Sierra Natural Science (SNS) Used throughout the bloom stage

Used throughout the bloom stage

Bottom intake with 10 ft maximum lift

A powdery mildew fungus is an obligatory parasite and thus requires a living plant host

Sweet® Raw is a flavorless

6 ft power cord with 3-prong molded plug

Black Ops Replacement Pre-Filter 12 in x 48 in White Sierra Natural Science (SNS) Used throughout the bloom stageUse these for a pre filter on you Black OpsNutrients Carbon Filters. Match the pre filter to your Black OpsNutrients Carbon Filter size. Helps to extend the life of your Black OpsNutrients Carbon Filter by keeping dust and other particles out. The white pre filters give a bright, clean appearance.