Caleffi z-one Caleffi z-one Caleffi valves zone motorized npt
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Caleffi Z-one - 1 NPT 2-way Straight Valve Body for Motorized Zone Valves
Z111000 - Caleffi Z111000 - 24V Normally Closed Actuator w/ aux. switch
Caleffi Z-one - 24VAC Actuator for Motorized Zone Valves
Caleffi Z121000 Z-One 24V Normally Closed Valve Actuator without AUX