This self-priming water pump can lift water to your house roof easily. With built-in pressure switch, it automatically turns the pump off when pressure builds up such as turning off the tap and it will automatically turn back on when you turn the tap back on. There is an indicating arrow on the pump body to direct the water flow, and it is just directs to the outlet water side. Features: 1.When the pump's water outlet is completelyblocked(no water leakage and the pressure goes to the maximum value 11 kg.f/cm2),the power will be automatically cut off and the pump motor will stop. When thewater outlet is opened, the pump will start operating again.2. Self priming smoothly, easy connecting system, powerful automatic pressure pump, extremely efficient, very low current draw and offer high capacity output. 3. ABS solid construction body, soft rubber mounting, stable and heavy duty equipment. Easy to dissipate heat with two big holes on one end of the pump body. 4. An indicating arrow on the pump surface to direct the water flow, and it directs to the outlet water side. 5. Wide applications, such as for car washing machine, the solar energy water, remote control water equipment, some place need to control the switch frequently, somewhere energy saving, etc. Specifications: Material: ABS shellMain Color: BlackVoltage: DC 12VPower(max): 100WWork Pressure: 0.7Mpa/101.5psi (145psi=1Mpa)Flow(max): 8L/minProtection Valve Type: intelligent valve (with pressure switch)Head: 70 metersRange: 9 meters Suction Distance: 1.5 metersSize(L x W x G): 18.3 x 4.7 x 4.8cm/7.2' x 1.85' x 1.89' Interface Outer Diameter: Approx. 18mm / 0.71"Interface Inner Diameter: Approx. 7.5mm / 0.30"Suitable Inlet/Outlet Hose Size: 12mm outer diameter, 8mm inner diameterPackage Weight: approx. 1.18kgApplications: Suitable for car washing machine, the solar energy water, remote control water equipment, some place need to control the switch frequently, somewhere energy saving, etcPackage Included: 1 x Self Priming Water Pump Notes: 1. Easy to install, but professional installation is highly recommended. 2. Inlet water end must use filters, the power supply must form a complete set. 3.The product pressure switch is built-in and cannot be adjusted.4.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..