High-impact, heavy-duty polymer provides professional quality construction for reliability and durability. Weighted arm for slower rotation and better water coverage. Distance control adjusts for a 20 to 41 ft radius. Diffuser screw breaks up water stream for improved water coverage. Straight through flow sprinkler design for great performance in dirty water conditions. New removable bayonet nozzle for easy cleaning. Full circle (360 deg) or part circle (20 to 340 deg) operation. Water saver PJ spray guide arm controls stream and prevents wasteful side splash onto buildings and walkways. 1/2 in male pipe inlet.