Wayne Sump Pump Switch is designed specifically for Wayne submersible sump pumps, providing a reliable and easy solution for replacing your pump's switch. This kit includes one switch and one square ring gasket, ensuring a complete and secure fit. It is compatible with model numbers CDU-790, CDU800, SSF33, and SSM50 pumps. For pumps manufactured before January 1, 1985, where the float arm lacks a pivot pin, it may be necessary to use part model number 23145 float arm and bellow to properly reseal the switch. This switch helps maintain the efficient operation of your sump pump, extending its lifespan and performance. Model Number: 56395