Feature:1. Strong Suction: The manual diaphragm bilge pump is made of high toughness plastic, making it lightweight yet extremely sturdy. It provides powerful suction for efficient pumping.2. Wide Application: This handle pump is a must have on boats. It serves as a reliable backup in case of electric pump failure, ensuring continuous water drainage.3. Durable and Reliable: The marine manual diaphragm bilge pump is built with a robust and durable structure specifically designed for maritime use.4. Easy to Use: This manual pump features a user friendly handle design, making it easy and comfortable to operate. It requires no external power source.5. Compact and Portable: The manual diaphragm bilge pump is compact and lightweight, allowing for convenient storage and easy transportation.Specification:Item Type: Diaphragm Hand PumpMaterial: Plastic + MetalWorking Mode: Self PrimingHose Diameter: Inlet And Outlet Outer Diameter 1-1/2in (25mm) Capacity: 720 GPH (2725 LPH)Maximum Discharge Head: Approx. 4m (13ft)Maximum Suction Range: Approx. 3 meters (10ft)Applicable: For ships, yachts, kayaks, speedboats, canoes, etc..Package List:1 xDiaphragm Hand Pump