The Xylem McDonnell & Miller 347600 Float with Rod and Assembly is a liquid level control component designed for HVAC and boiler water level devices. It operates by rising and falling with fluid level, transferring motion through the rod to actuate switches or valves for level regulation. Commonly used in boiler low-water cutoff and condensate control systems, this float assembly ensu... https://www.partshnc.com/347600-xylem-mcdonnell-miller-sa150-11-float-rod-assy