Hydronics
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Caleffi Universal Flow Switch
Universal Flow Switch for heating systems. 1" NPTM, Brass body, Suitable for 1" to 8" pipe. UL listed. Learn More$121.97 -
Caleffi Z-One Quick Order Valve and Actuator Sets
Caleffi Z-One Quick Order Valve and Actuator Learn More$74.18
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Caleffi Series 676 Two-way Thermoelectric Zone Valve Including Actuator
Caleffi Series 676 Two-way Thermoelectric Zone Valve Learn More$57.30 -
Caleffi Series 676 Two way Zone Valve Body only 3/4" Sweat
Caleffi Series 676 Two way Zone Valve Body only 3/4" Sweat Learn More$30.68
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Caleffi Discal Series 551 Compact Air Separator 3/4" Sweat
Air separator. Brass body. Stainless steel mesh internal element. ½" NPT bottom thread. Max. working pressure: 150 psi. Working temperature range: 32—250°F. Learn More$51.82 -
Caleffi Series 6563 Twistop Thermoelectric Actuator 24VAC Manual Twist Open
Twistop Thermoelectric Actuator 24VAC Manual Twist Open w/green open indicator, Includes 36" Leads and Built-in End Switch Learn More$60.02
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Caleffi Series 6561 Thermoelectric Actuator 24V Includes 36" Leads & Built-in End Switch
Caleffi Series 6561 Thermoelectric Actuator 24V Includes 36" Leads & Built-in End Switch Learn More$46.28 -
Caleffi Series 5022 High Capacity 1/2" NPT Male Air Vent
Caleffi Series 5022 High Capacity Air Vent Learn More$18.29
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Caleffi Series 5027 Automatic Air Vent NPTM With Check Valve
Caleffi Series 5027 Automatic Air Vent Learn More$9.39 -
Caleffi Z-One 24V Normally Closed Valve Actuators
Caleffi Z-One 24V Normally Closed Valve Actuators Learn More$48.57