Rain Bird’s Jar-Top Anti-Siphon valves combine the newest in Jar-Top technology with the reliability of anti-siphon protection. The Jar-Top bonnet quickly screws on without using any tools. This allows you to easily access the diaphragm for effortless maintenance and cleaning.
Rain Bird manufactures only the highest quality Anti-Siphon valves. Use Anti-Siphon valves in locations where the use of a pressure vacuum breaker (PVB) or doublecheck valve is not required by city codes. Check your local city codes to determine what type of valves are required.
Anti-Siphon valves are installed above ground and will prevent back flow if properly installed. Anti-Siphon valves should always be installed at least 6” above the highest head on the valve line, and should never have another valve installed further down the line from the main valve. All of our Anti-Siphon valves work with any standard sprinkler timer.
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