... 2)with oil alerter 3)CE,ISO9001 1.5''-4'' air-cooled 4-stroke Gasoline Sewage Water Pump FEATURE1.Larhe fuel tank ... choice specification MODELYW40GP-1.5"YW50GP-2"YW80GP-3"YW100GP-4"Water PumpInlet and outlet inside diameter(mm)40(1.5inch ... , gasoline generator set,air-cooled and water-cooled diesel generator,engineering devices,mining machine,electrical appliance, water-heating,metal products, electro ...