Power: 2X"D" Size dry cell batteries * Material: ABS, P.E, Nylon, P.C, SUS 316 food-grade * Item: D-V Bio Battery Pump Model No.: 29799 (DC) * Flow Rate: 0.9-1.0 gallon/min (3.51-4 liter/min) COLD/HOT Temp. : 32 oF (0 oC) / 140 oF (60 oC) Dimension: 72x7x7cm * On/ Off button on the head of the pump£¬Easily operated On-Of switch