HEAD SHRUB SPRAY HALF CIRCLE Rain Bird A17 matched precipitation rate riser-mounted shrub nozzles 8 to 15 ft spray distance. This specialty nozzle is designed with a 1/2 in female pipe connection for mounting above ground on a standard 1/2 in riser. Rain Bird MPR Nozzles feature matched precipitation rate watering distribution technology. MPR nozzles are designed to provide uniform coverage with no dry or brown spots for healthier landscapes and water savings. Non-corrosive plastic and stainless steel construction for long life. Stainless steel adjustment screw adjusts flow rate from 0.65 to 0.92 gpm and spray distance from 8 to 15 ft. Captured screw slot prevents screwdriver slippage during adjustment. White medium mesh filter screen protects from clogging and maintains precise radius adjustment.