Heightened Efficiency with an increased flow rate - high flow impeller designQuick-change motor connectionCompact, all-in-one motor/impeller unit with stainless steel (316) shaftNo tools needed for maintenance, no need for complete disassembly. You can leave the pump casing attached to both the boat and the hosesIncludes both a straight, and a 90° smooth elbow easy to install Dura-Port as well as a removable check valveMolded T-Slot - Easy Installation with SwitchesPre-configured with an electro-magnetic switch for automatic operation