G THREADING- 1” quality stainless threading, manufactured and measured according to British Standard Pipe Thread. This electrical ball valve is full port, meaning the bore in the ball is a full 1”(25mm). 9V-24V AC/DC- Works effectively over entire voltage range; Will open or close valve in 6~8 seconds. 2 WIRE AUTOMATIC RETURN SETUP- Simple two wire connection, limit switch minimizes power after valve is fully open, and the valve returns to fully closed if power is removed, Ideal for projects where an automatic return is necessary. ALTERNATIVE TO SOLENOID VALVES- Automatically minimizes power after valve is fully open, this reduces likelihood of overheating, making it a great alternative to solenoid valve for projects where a valve needs to be open for an extended period of time. SAFE AND RELIABLE- Made of SS304 steel, with NSF certification, this ball valve is safe for drinking water; Lifespan is 80,000-100,000 cycles