Irritrol Drip Zone Valve Kit with Atmospheric Vacuum Breaker includes a 3/4 inch 24 VAC electric anti-siphon valve, Y-filter with 150 mesh stainless steel screen, 25 psi low flow pressure regulator (1/10 to 8 gallons per minute), and an adapter to 1/2 inch polyethylene tubing (drip irrigation tubing). Inlet pipe not included. Optional accessories include 9 Volt DC latching solenoid to run from a battery operated timer.