Quickly and easily turn a ¾ in. outlet into automatic irrigation system with anti-siphon valve. Stop having to turn your irrigation system on and off by hand. This timer features a large, easy-to-read LCD screen and simple, icon-based programming with weekly or cyclical programs. The timer's 3/4 in. heavy duty, professional grade anti siphon valve includes flow control, and external manual bleed for smooth opening and closing. Completely waterproof and able to operate in harsh environments, this battery operated timer is the simple and dependable solution for any irrigation systems. Color: Blues.