This 3 chamber water pump measures 4.84" high by 5.11" wide by 7.98" long and is a Flomax equivalent. The valves are corrosion-resistant and the pump runs very quietly, which is perfect for camping in a packed campground. Keeping the noise down and keeping your neighbors happy, this pump runs quietly. With the smooth operation and self-priming features, you don't have to worry about taking extra care or doing extra steps to keep it up and running.Even if your water runs out and it starts to run dry, it won't become damaged from this. With the 8 amp draw, it has a lower energy draw, leaving more power for your other appliances and gadgets. It runs on a voltage of 12V. For the winter, make sure you clear the pump of any water, as freezing water while inside may damage the pump.