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Hydronics

Need help deciding which water heater is right for you? Start here:

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  1. Caleffi Series 5022 High Capacity 1/2" NPT Male Air Vent

    Caleffi Series 5022 High Capacity 1/2" NPT Male Air Vent

    Caleffi Series 5022 High Capacity Air Vent
    $21.79

  2. Caleffi Universal Flow Switch

    Caleffi Universal Flow Switch

    Universal Flow Switch for heating systems. 1" NPTM, Brass body, Suitable for 1" to 8" pipe. UL listed.
    $142.69

  3. Caleffi Z-One 24V Normally Closed Valve Actuators

    Caleffi Z-One 24V Normally Closed Valve Actuators

    Caleffi Z-One 24V Normally Closed Valve Actuators
    $56.72

  4. Caleffi Z-One 120V Normally Closed Valve Actuators

    Caleffi Z-One 120V Normally Closed Valve Actuators

    Caleffi Z-One 120V Normally Closed Valve Actuators
    $56.72

  5. Caleffi Series 519 Differential Pressure Bypass Valve with 3/4" Male Inlet and 3/4" NPTM Outlet.
  6. Caleffi Series 519 Differential Pressure Bypass Valve with 1" NPT Female Inlet and 1" Sweat Outlet.
  7. Caleffi Pressure/Temperature Gage for Boilers with 3 1/8" Dial size

    Caleffi Pressure/Temperature Gage for Boilers with 3 1/8" Dial size

    Caleffi Pressure/Temperature Gage for Boilers with 3 1/8" Dial size
    $19.54

  8. Caleffi Series 598 1" NPT Tail Piece and Nut for Caleffi Mix Valve

    Caleffi Series 598 1" NPT Tail Piece and Nut for Caleffi Mix Valve

    Caleffi Series 598 1" NPT Tail Piece and Nut
    $20.13

  9. Caleffi Series 612 1" FNPT by 1 1/4" Male Union Thread Bushing

    Caleffi Series 612 1" FNPT by 1 1/4" Male Union Thread Bushing

    Caleffi 1" FNPT by 1 1/4" Male Union Thread Bushing
    $14.65

  10. Caleffi Series 694 Temperature Pocket Well for 1", 1 1/4" and 1 1/2" Hydro Separator

Items 21 to 30 of 248 total

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