Orbit 3/4 in. Brass Anti-Siphon Control Valve 51016 - The Home Depot

This professional grade anti-siphon valve replaces Rain Bird and other irrigation valves installed above ground with 3/4 in. female threaded inlet and outlet. It can be used with any 24 Volt AC irrigation timer. Its unique reverse-flow design helps prevent flooding in the event of internal diaphragm failure, keeping the valve closed and saving water. Anti-Siphon valves should always be installed at least 6 in.

Rain Bird Anti-Siphon Valve - 3/4

Featuring a jar-top bonnet for easy access to diaphragm for quick maintenance inspections, this automatic valve has built-in backflow prevention. The built-in prevention is designed to protect drinking and other household water from contamination. The Lawn Genie 3/4 in anti-siphon valve also features flow control and both internal and external bleed.

Lawn Genie Automatic Anti-Siphon Valve, 3/4

Orbit 3/4 in. Brass Anti-Siphon Control Valve 51016 - The Home Depot

The Automatic Anti-Siphon Valve checks back-flush and prevents contaminants from entering household water supply. The durable, non-corrosive plastic construction makes instillation easy and provides years of durable trouble-free service. As a universal valve, it works with residential standard 24 volt sprinkler systems. A manual on/off option and bleed screw make testing and flushing your sprinkler system hassle-free.

Orbit 57604 1-Inch FPT Anti-Siphon Valve with 3/4-Inch Reducer

Orbit 3/4 in. Brass Anti-Siphon Control Valve 51016 - The Home Depot

Orbit 51022 Anti Siphon Control Valve, 3/4

For controlling the flow of water while also protecting a culinary water system Combines a manual irrigation valve with an atmospheric vacuum breaker

Orbit Sprinkler System 1-Inch Anti-Siphon Control Valve 51023P…

Orbit Sprinkler System 3/4-Inch Auto Brass Anti-Siphon Valve 57065 (Brass Anti-Siphon Valve) : Patio, Lawn & Garden

Rain Bird Anti-Siphon Valve - 3/4

The Orbit 57623 anti-siphon sprinkler valve features a -inch FPT Female Pipe Thread connection. With a solenoid this Orbit sprinkler valve works with many different automatic sprinkler systems. Its anti-siphon construction is ideal for ensuring dirty water does not back up into your drinking water. It is easy to use and reliable to guarantee many years of dependable lawn watering. This valve can also be used to replace sprinkler valves that may have worn out or become damaged.