1Compact, manual selfpriming pump can effectively deliver up to 45 Litres per minute /720 GPH flow capacity. 2Specifically designed for marine applications with strong and durable construction, and with removable 2 position aluminium handle. 3Inlet and outlet ports is suitable for 33mm /11/4in diameter hose. Easy to mount and install, mounting screws not supplied. 4Ideal as a backup bilge pump in case your electronic bilge pump fails, greatly provide you more convenience. 5Designed for confined and limited spaces, suitable for pumping bilge water, saltwater, waste or diesel transfer. Item Type: Hand Diaphragm Pump Material: Aluminum Alloy + ABS Type: Self-Priming Flow Rate: 720GPH/2724 LPH/45L/MIN Hose Inlet OD: Approx. 1-1/4in / 33mm Hose Outlet OD: Approx. 1-1/2in /38mm Maximum Suction Lift: Approx. 10 feet /3 meters Maximum Discharge Head: Approx. 3.5 feet /4 meters Body Size: Approx. 5.5in x 7in /140mm x 180mm Overall Length: Approx. 11 inches /280 mm Handle Size: Approx. 4.5in x 1in /115mm x 25mm Features: Easy to remove the clamp ring for maintenance/head rotation 1 xHand Diaphragm Pump