Black Ops Replacement Pre-Filter 14 in x 39 in Black Mother Earth Washes powdery mildew right off

Washes powdery mildew right off the plant

RAW Grow is a tested blend of RAW soluble plant nutrients

adjust settings and calibration by a simple push of a button

Includes four interchangeable sprayer nozzles for different applications

Use with undiluted Bluelab pH Up or Down

Black Ops Replacement Pre-Filter 14 in x 39 in Black Mother Earth Washes powdery mildew right offUse 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 black color does not show the dirt as much.