1Equipped with a reed sensor system with builtin electronic control, which can easily realize fully automatic operation. 2Builtin float switch (Separate float switch is not required) The bilge pump has the characteristics of compact design, high efficiency and long service life. 3It has the protection function of corrosion protection and ignition protection, and the performance is better. 4With stainless iron shaft, nondry operation, for good sealing performance. Snaptype strainer for easy installation, to offer you much convenience. 5Do not use any power source until the internal float switch activates the pump (when the water level rises). Item Type: Auto Bilge Pump Material: ABS Model: NMBP11-G1100-40-12 Maximum Flow: 1100 GPH Rated Voltage: 12V Rated Current: 3.0A Fuse Current: 5.0 A Stroke: 13ft / 4m Cable Length: Approx. 3ft / 1m Outlet Pipe Diameter: Approx. 1-1/8in (29 mm) How to Use:Automatic bilge pumps can only be used for pumping water. Can not be used for other liquids, and can not be run dry When installing, connect the black lead of the pump to the negative pole (-), and connect the brown or brown-white lead to the positive pole (+) Wire connections must be sealed with marine sealant, and all wires and connections must be higher than the bilge water level. Please do not remove the insulator at will if it is not necessary. 1 x Water Pump 1 x Manual