Bosch Garden and Watering 967MBGT Metal Impulse Sprinkler Green Thumb, metal impulse sprinkler, with a metal head and sled base Diffuser screw allows easy, fingertip adjustment of water stream for even coverage Impulse arm saves water by eliminating back, and side splash Constructed from long lasting brass, and zinc on impulse head Provides water coverage for up to 5,800 square feet