www.pmmag.com/articles/89078-water-flow-alarm-from-reliable
Water Flow Alarm from Reliable
September 1, 2005

Reliable recently released a multipurpose riser designed especially for providing an alarm on combination sprinkler and plumbing systems for single-family residential systems. The unique design alarms only when water flow in the system is in the 11- to 13-gpm range, typical single fire sprinkler flow.
Circle 35