Orbit 1" Electric Anti-Siphon Valve. This durable non-corrosive construction with adjustable flow control stem keeps contaminated chemicals from entering the household water supply. It is safe, low voltage, and for outdoor use with cold water. It has a nominal size of 1", connection type of FNPT, flow rate of 5 to 40 gpm, pressure rating of 10 to 125 psi, temperature rating of 158 °F, voltage rating of 24 volt, body material of plastic, and dimensions of 6-1/2" length x 2-3/4" width x 6" height. Backed by a 6-year limited warranty.