ARBITER

Backflow preventer test kits comprised of test equipment for measuring pressure of backflow prevention devices and electronic devices for testing differential pressure of backflow prevention devices; test equipment for measuring pressure of backflow prevention devices; electronic devices for testing differential pressure of backflow prevention devices; digital apparatus for testing water control devices, namely, vacuum breakers, check valves, vacuum breaker assemblies, check valve assemblies, pressure relief valves, reduced pressure zone devices, and reduced pressure backflow assemblies; electronic gauges for measuring pressure differentials