Deliver precise watering to your plants to help them grow and thrive. With the Adjustable Flow Micro Sprinkler, you can increase or decrease the volume of water released with a twist of a dial. Water is released in a fan spray, quarter-circle pattern at up to 23.9 GPH with an adjustable radius of 4.4 ft. (at 15-50 PSI). Ideal for groundcover, flower beds, planting beds, vegetable gardens, and new plantings. The 10-32 threaded inlet screws onto a rigid riser-no tools necessary to install. The Micro Sprinkler, also known as a Micro Sprayer, is made of polyethylene treated with UV inhibitors.