This Shrub Head has a durable plastic insert nozzle and a 1/2 in. FNPT (Female National Pipe Thread) inlet. The plastic nozzle is designed with a quarter spray pattern. This shrub head is also designed with a filter that prevents debris from clogging it. A pre-installed pressure regulator delivers a constant 30 PSI - the precise pressure at which spray nozzles operate best. Delivers even, and consistent water coverage over a nozzle's radius. No over spray or misting due to an over pressurized system Orbit 1-ft- 10-ft Quarter-circle Spray Shrub Head Sprinkler in Black | 54273