Protect your plumbing system with the MOEN Flo 3/4 in. Smart Water Monitor and Automatic Shutoff Valve, a whole-home leak detection solution that installs on the main water line and continuously monitors water flow, pressure and temperature. FloSense technology learns normal household water usage patterns to identify abnormalities, while daily MicroLeak tests help detect small drips, excessive pressure and potential freezing conditions before they become larger problems. When a serious leak is detected, the system can automatically shut off the water and send alerts through the Moen Flo app, which also provides remote monitoring, water-use tracking and manual shutoff control. Featuring Wi-Fi connectivity with no separate hub required, the smart valve works with Alexa and Google Assistant and can continue using locally stored learnings if Wi-Fi is temporarily unavailable. Designed for compatible 3/4 in. or smaller plumbing systems, it features durable brass fittings, 3/4 in. FIP connections, a maximum pressure rating of 175 PSI and operating temperatures up to 140°F; professional installation by a licensed plumber is recommended.