Filtered Piston Kit Chloramine resistant  Proprietary DR resistant low lead brass alloy Actuator Sensor powered by 4 "AA" batteries 3 year battery life on 48,000 activations per year  Mechanical Manual Override Button  Control Stop Internal siphon-guard protection Vandal resistant stop cap Sweat solder kit Cast wall flange with set screw  Vacuum Breaker High back pressure One piece hex coupling nut  Internal seals Chloramine resistant  Adjustable tailpiece  Spud coupling and flange for top spud connection