Rain Bird 15HC1 Spray Nozzle, 180&deg; Half Circle Pattern, 8' - 15' Spray Distance Spray nozzle with 180 half circle pattern Adjustable spray distance from 8' to 15' Matched flow rate assures uniform watering even when different patterns are mixed in the same zone Compatible with all Rain Bird pop-up spray head sprinklers Filter to catch debris and keep nozzle clean Stainless steel adjustment screw adjusts flow rate and spray distance Constructed of highly durable UV and chemical-resistant materials to assure long life