Getting the right amount of spray to your plants is easy with the Adjustable Flow Micro Sprinkler. Simply turn the knob on the side of the emitter to increase or decrease the volume of water, and you will be able to zero in on exactly what you need. The rotary spray emits water in a full-circle pattern at up to 23.9 GPH with an adjustable radius of up to 7.6 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. The Micro Sprinkler, also known as a Micro Sprayer, is made of polyethylene treated with UV inhibitors.