The Marathon C331 is a Centrifugal Pump Motor. Some of the specifications of the Marathon C331 Centrifugal Pump Motor include: C331 5KC36JN269X 1/2 HP 3600 RPM 115/230 Volts 56J Frame 1 Phase Overload Protection. The warranty information for the Marathon C331 is the following: Marathon offers a 1-year manufacturer's warranty on their electric motors and motor accessories.. The Marathon C331 Typically Ships Within 1 Business Day. Some additional keywords associated with the Marathon C331 include the following: C331,C331