Hand Pump Discharge Connection Size 1 1/2 in Intake Connection Size 1 1/2 in Mounting Orientation Vertical Overall Width 8 in Priming Self-Priming Suction Lift (Maximum) 18 ft Check Valve Material Buna-N Diaphragm Material Buna-N Flow Rate (Maximum) 18 gpm Overall Height 3.5 in Overall Length 12.63 in Housing Material Aluminum Intake Connection Type NPT Discharge Connection Type NPT Feet of Head (Maximum) 18 ft