Signature 63XE PR/IS/ADV Series Spray Heads (Less Nozzle)

-The 63XE series comes the with the iStop feature, a pressure regulating valve, and a factory installed anti-drain valve (ADV). -The new iStop saves water by stopping the flow of water on broken or damaged heads as well as stopping the flow of water during nozzle maintenance. -The pressure regulator maintains optimum nozzle performance and prevents misting. -The anti-drain valve (ADV) will prevent low head drainage and prevent flooding or erosion. - Will hold back up to 10 ft (3 m) difference in elevation.