K Rain 6403 4 Outlet 6000 Series Valve for 3 Zone Operation f6 5 A Discharge 2" NPT 5 A Discharge 2" NPT downward vertical outlet Maximum Flow Up to ~44 GPM (varies by head) Maximum Head Shut off 50 ft (approx) Weight (Unit) Approximately 58 lb (standard model) Operating Temp (Fluid) Up to 140 °F intermittent If you're storing 30+ gallons of hot water in a traditional water heater when your application requires much less than that The installed cam advances through 3 selected outlets and leaves 1 physical outlet outside the operating sequence as the upstream pump or control valve shuts off and restarts 25 to 150 PSI operating range