U. V. Housing, Dc Uv Power Supply, Water Level Sensor, Electronoc Adaptor(, Pump Head, U. V. Sensor Assembly, 3/4 Nut Nozzle, Photo Register & Nut, R. O. Pump Gasket, C. C. Switch, C. C. Top & Bottom, Inlet. State Contact Uv Holder, Float Sensor, Chamber Gable