POWER KIT MUST BE PURCHASED SEPARATELY For urinals with 3/4-inch (19 mm) exposed top spud Touchless operation limits the spread of germs Exclusive DynaClean self-cleaning wiper spring technology Integral wiper spring cleans refill orifice with every flush to help prevent valve run-on Fully mechanical manual override can operate without power Fail-Safe operation: Valve automatically closes upon loss of power or water pressure Pressure Compensation feature ensures accurate flush volume regardless of inlet water pressure Proprietary brass alloy resists dezincification 11-1/2" (292 mm) rough-in