Item No.:BB-30301 Brass Metal Water Impulse Sprinkler With Steady Metal Zinc Base For Irrigate small area grass lawn 1. impluse sprinkler with 1/2" outside screw zinc bear,Water Pressure:2.0-4.0kgs,water Flux:0.95-1.3m3/h,Spraying radius:8.0-13M,Distance and density control 2. ...