Highimpact, heavyduty 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 12 in male pipe inlet