American Standard Ultima Selectronic Touchless Urinal Flush Valve, Piston Type, Battery, 0.125 gpf 0.5 Lpf 6063013.002 finish Satin Stainless Connection: 1 2" Copper Slip On Connection: 1 2" Copper Slip On Top roll automatically drops in place when bottom roll is used up no filters to clean Selectronic® Proximity System with programmable sensor allows for easy adjustment and customization State of the Art Electronics prevent ghost flushing Fully Mechanical Manual Override Button can flush the valve without power Fail Safe: Valve automatically closes upon loss of power or water pressure and does not need to be reset Adjustable Sanitary Flush cleans the fixture & maintains the trap seal For urinals with 3 4 inch (19 mm) exposed top spud