Motorized Zone Valve Two Way Normally Closed Geothermal System Height (In.) 4-1/4 Width (In.) 5-5/16 Depth (In.) 2-3/8 4.9 300 240 24 2-Pin Screw Connectors for Power and End Switch For Use With Geothermal Systems Connection Type/Size (In.) NPT 1/2 Includes End Switch