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FEBCO Series 850 Small double check valve assembly backflow preventers include a freeze sensor for use with SentryPlus Alert® technology to signal facility personnel when temperature nears and reaches the freezing point. Freeze alerts feature available with add-on connection kit for Wi-Fi networks, building management systems (BMS), and irrigation management systems (IMS).

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:

ZurnTrench Drain

This series is designed for non-health hazard applications, to protect drinking water supplies from dangerous cross-connections in accordance with national plumbing codes and water authority requirements for non-potable service applications such as irrigation, fire line, or industrial processing. Standard assembly with ball valves or union end ball valves. End connections: NPT ANSI / ASME B1.20.1. Sizes 1/2 to 2 IN.

FEBCO Series 850 Small double check valve assembly backflow preventers include a freeze sensor for use with SentryPlus Alert® technology to signal facility personnel when temperature nears and reaches the freezing point. Freeze alerts feature available with add-on connection kit for Wi-Fi networks, building management systems (BMS), and irrigation management systems (IMS). This series is designed for non-health hazard applications, to protect drinking water supplies from dangerous cross-connections in accordance with national plumbing codes and water authority requirements for non-potable service applications such as irrigation, fire line, or industrial processing. Standard assembly with ball valves or union end ball valves. End connections: NPT ANSI / ASME B1.20.1. Sizes 1/2 to 2 IN. To learn more visit: https://www.watts.com/freeze-detection