Description
Rain Bird manufactures only the highest quality in-line valves. Use in-line valves in locations where the use of a Pressure Vacuum Breaker (PVB) or a double-check valve is required by city codes to protect against back flow. Check your local city codes to determine what type of valves are required. In-line valves are installed below ground in a valve box down stream from the main line from a PVB or double check valve. In-line valves will not prevent back flow on their own and they need the help of a back flow prevention device.
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