3770006 1.6 GPF Wall Mounted Exposed Sensor Hardwired Water Closet Flushometer in Polished Chrome. 1.6 GPF. Polished Chrome Finish. Fixture Connection Top Spud. Single Flush. Less Control Stop. Electrical Override. Hardwired. Metal Index Push Button. Sensor-Operated. Less Vacuum Breaker. Sloan Exposed Sensor Hardwired Water Closet Flushometer.- 3770006 1.6 GPF Wall Mounted Exposed Sensor Hardwired Water Closet Flushometer in Polished Chrome.