Argo 4 Zone Relay For Zone Valves With Priority AZ-4CP4 Zone Valve Controller With Priority / Switchable Priority (On/Off) / Priority Zone Is Field Configurable For Use With Either Circulator Or Zone Valve / Controls Three Or Four Wire 24V Zone Valves / Front Window With Clearly Visible LED Diagnostic Lights / Compatible With All Types Of Thermostats / Auto Reset Fuse Prevents Service Calls / Expandable To 10 Zones With Priority Utilizing Two Az Controls Product Specifications BRANDArgo LENGTH INCHES12 WIDTH INCHES8 HEIGHT INCHES4 WEIGHT LBS6.2 COLORBlack ZONE QUANTITY4 VOLTAGE40 AMPERAGE7.2 HORSEPOWER-- SWITCH TYPESPST LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERAZ-4CP