Sloan, 3452673, ROYAL 186-1 ESS. Sensor Exposed Flushometer for Wall Hung Urinals, 11.5 in. Rough in, Hardwired 1 GPF/3.8 LPF, electronic sensor solenoid operated. Sloan Optima equipped Flushometers provide the ultimate in sanitary protection and automatic operation. There are no handles to trip or buttons to push. The Flushometer operates by means of an infrared sensor that adapts to its surrounding. Once the user enters the sensors effective range and then steps away, the Flushometer Solenoid initiates the flushing cycle to flush the fixture. Automatic operation provides water usage savings over other flushing devices. Reduces maintenance and operation costs. Color: Polished Chrome. Material: Brass.