Moen Flo is a professional-grade whole-home water monitoring and automatic shutoff device that the insurance industry endorses as the gold standard for residential leak prevention. It installs on the main water supply line and runs 24/7 micro-leak detection tests every night — identifying toilet fill valve drips, slow irrigation leaks, and faucet drips that waste thousands of gallons per year. On detecting an abnormal flow pattern, the Flo app notifies you immediately; on detecting a catastrophic leak or burst pipe, it shuts off water automatically. Works with Alexa, Google Home, and Apple HomeKit. Moen — a brand already in more American homes than any other faucet manufacturer — designed Flo for the homeowner who wants total peace of mind about plumbing.

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