American Standard 6063.101.002 Exposed Selectronic 3/4-Inch Top Spud Urinal Flush Valve, DC Powered, 1.0 Gpf, Polished Chrome Exclusive Pressure Compensation feature eliminates the need for the installer to adjust the stop valves, saving time & money and ensuring water savings Self-cleaning piston eliminates routine maintenance. No diaphragms to replace or filter screens to clean. Integral wiper spring cleans the refill orifice with every flush. Delivers reliable operation even with poor water quality Hygienic, touch-free operation Flexible Selectronic Platform with programmable sensor 11-1/2-Inch Rough-In Can Be Installed Left Or Right Handed Dc Powered