The Tsurumi Pump® Titanium Pump is designed specifically for continuous duty in salt water. These high-quality pumps are designed for long service life. All parts in contact with water are either titanium or FRP resin, including the motor shaft and the screws! Both models have built-in thermal protectors. 2” FPT outlets, 32’ power cords and 1” strainer inlets. Note: Like most submersible pumps, these should have their motors underwater (for cooling) when in continuous duty applications.