The HYDROS Dosing Pump is a simple and affordable way to automate the addition of liquid supplements, trace elements, and two-part solutions to an aquarium. Connect the Dosing Pump to any available HYDROS Control Drive Port for easy automation using the intuitive and straightforward yet robust configuration options of the HYDROS App. HYDROS Dosing Pump Features Quiet operation Will not back siphon >2,000 hours pump life Accuracy of +/- 2% Comes with HYDROS Drive Power Cable and 9.5ft of 3mm PVC tubing