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a built in self calibration function and an integrated photocell that enables operation in daytime hours only
Increase your grows without adding to your energy bill
-Reliable metal gear construction makes for whisper quiet operation
It helps keep the plants upright
Some ingredients allow for instantly available nutrition
Black Ops Replacement Pre-Filter 14 in x 39 in Black Active Aqua a built in self calibrationUse 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.