ZVR104 | Zone Valve Relay 4 Zone | Caleffi Seal Material_EPDM Regulator 210 1-1/2 Inch 7

Regulator 210 1-1/2 Inch 7 Inches of Water Column Set 4-8 Inch Spring 10 Pounds per Square Inch High Strength Aluminum Alloy -40 to 200 Degrees Fahrenheit NPT for Gas

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With a 5/16" x 1

This helps to improve system efficiency

and M6 screws

ZVR104 | Zone Valve Relay 4 Zone | Caleffi Seal Material_EPDM Regulator 210 1-1/2 Inch 7Caleffi Zone Valve Relay, 4 Zone (ZVR104) Caleffi's ZVR104 Zone Valve Relay is designed to control up to four independent zone valves, enabling efficient management of hydronic heating systems. This compact and reliable relay features multiple inputs for thermostats and end switches, ensuring precise control of zone temperatures. Key Features: Powers up to four zone valves Multiple inputs for thermostats and end switches Compact and easy to install