Automatically turns on after the water starts and shuts off when the water is removed. Activated by a Rule-A-Matic float switch. Available with 19, 25, 29, 38 mm inlet ports which offer varying combinations of inlet hose. Discharge port is 19 mm. Other features include a clear screw down cover, a removable strainer for easy cleaning and an internal check valve to prevent back flow. 230x240x130 mm h.