Brand: Hunter Industries SKU: HC100FLOW Product Overview The Hunter HC100FLOW is a wired 1-inch flow meter designed to measure irrigation-system water use and send pulse data to a compatible Hydrawise-enabled controller. When properly installed and configured, the controller can use the flow data to display total water use, compare expected and actual station flow, and generate alerts for high-flow, low-flow, or unexpected-flow conditions. This gives property owners and irrigation professionals additional visibility into broken sprinklers, damaged piping, closed valves, water-supply interruptions, and other conditions that may not be obvious from the controller alone. The meter has a directional brass body with 1-inch NPT inlet and outlet connections, removable union fittings, a PVC reading cap, and an analog dial for local readings. Its published measuring range begins at approximately 0.31 GPM, with a maximum recommended operating flow of 30 GPM and a maximum flow of 34 GPM. The two-wire pulse output provides one pulse per U.S. gallon for compatible controller monitoring. Hunter lists an accuracy of approximately 2% when the meter is installed according to the required straight-pipe, flow-direction, and wiring guidelines. The HC100FLOW should be installed in the mainline where it can measure all irrigation flow controlled by the connected controller. Allow adequate straight pipe before and after the meter, observe the flow arrow, protect the wiring connections, and confirm the controller’s flow-sensor compatibility before installation. Key Features 1-inch NPT inlet and outlet connections Wired pulse output for compatible Hydrawise controllers Minimum measurable flow of approximately 0.31 GPM Maximum recommended flow of 30 GPM Maximum flow of 34 GPM Working-pressure range of approximately 1–230 PSI Directional brass meter body with removable union fittings Analog dial and leak indicator Two-wire electrical connection Published accuracy of approximately 2% Common Uses Irrigation water-use reporting High-flow and low-flow alerting Broken-pipe and sprinkler monitoring Comparing station flow against learned or expected values Residential and light-commercial Hydrawise systems Compatibility and Installation Notes Use with a compatible Hunter Hydrawise controller that accepts a wired flow-meter input. Install in the direction shown by the arrow on the meter body. Follow Hunter’s straight-pipe and mounting-orientation requirements for accurate readings. Use approved waterproof wiring connections and keep sensor wiring separated from high-voltage conductors. Confirm expected system flow falls within the meter’s published measuring range. Provide access for service, winterization, and union removal. Frequently Asked Questions Does the HC100FLOW shut off the water by itself? No. It measures flow and reports pulses to a compatible controller. Any alert or automatic irrigation response depends on the controller configuration and connected system equipment. Can this meter be installed backward? No. It is directional and must be installed with the flow arrow aligned with the direction of water movement. Is this the correct meter for every 1-inch irrigation system? Pipe size alone is not enough. Confirm the expected minimum and maximum flow, controller compatibility, thread type, installation space, and pressure before ordering. Why Buy from Big Frog Supply? Big Frog Supply carries Hunter Hydrawise controllers, flow meters, sensors, valves, wiring accessories, and irrigation repair parts for connected water-management systems.
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