About this item 【What do you get 】: 2 × Vacuum Breakers, 2 × Washers, 1 × Tape (About 350" long) 【Specifications】: 3/4 inch female hose threaded inlet × 3/4 inch male hose threaded outlet; max operating pressure is 125 psi; max operating temperature is 180°F/82°C 【Advanced Function】: Break-off screw for permanent attachment; eliminates back-siphonage into water supply; anti-backflow valve for most of standard hose and end valves including hose bibs, sillcocks, RV, garden spigot, outside water faucets, hydrants 【Drain Hole】: Reaching a certain water pressure, drain hole is able to drain the remained water in the pipe. WARNING : Please keep away from the product when turning off the water, remained water will be sprayed wet your clothes 【High Quality】: Durable brass material stays longer; Meets ASSE 1011/CSA B64.2, Meets ANSI/NSF 61-9 › See more product details