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Refined By

Brand
Caleffi

Model

loading spinner

Part Category

  • Actuators(1)
  • Bearings & Bushings(1)
  • Brackets & Retainers(4)
  • Caps & Plugs(1)
  • Controls(1)
  • Filters, Screens & Driers(9)
  • Gaskets & Seals(1)
  • Gauges & Thermometers(1)
  • Handles(1)
  • Hoses, Pipes & Tubing(1)
  • Insulation(25)
  • Knobs & Dials(1)
  • Nuts, Bolts & Screws(36)
  • Panels, Covers & Lids(2)
  • Pressure Relief Controls(6)
  • Probes & Sensors(3)
  • Pumps & Motors(5)
  • Regulators(12)
  • Switches & Buttons(18)
  • Valves, Solenoids & Fittings(363)
  • Washers, Rings & Spacers(11)

Category

Plumbing Supplies (37)
Cool,Calm and Collected- Real OEM HVAC Pars Are in Season! SHOP NOW

Caleffi Replacement Parts

Caleffi specializes in precision-engineered components that protect hydronic and HVAC systems from pressure imbalance and thermal stress. These parts are essential for maintaining safe operation while improving overall system efficiency.

  • Pressure relief and safety valves
  • Radiant manifolds
  • Flow switches
  • Temperature and pressure monitoring devices

Parts Town offers a wide range of real OEM Caleffi parts that are always genuine OEM and tested and approved by the equipment manufacturer. Designed for exact fit and dependable performance, these components help deliver reliability, safety, efficiency and warranty protection across demanding applications.

With the most in-stock parts on the planet, Parts Town helps minimize downtime when system issues arise. Plus, Parts Town offers same-day shipping on in-stock items until 9 PM ET Monday–Friday, making it easy to get real parts faster and keep equipment protected.

Caleffi

Caleffi Parts & Manuals

Caleffi parts from Parts Town are built to safeguard hydronic and HVAC systems where pressure balance and temperature control matter most. Our selection of real OEM Caleffi replacement parts includes critical components like air separators, balancing valves and pressure relief valves designed to protect equipment from damage. We only carry genuine OEM Caleffi parts so you can keep your system well-maintained and performing reliably day in and day out.

...
Caleffi

Caleffi Parts & Manuals

Caleffi parts from Parts Town are built to safeguard hydronic and HVAC systems where pressure balance and temperature control matter most. Our selection of real OEM Caleffi replacement parts includes critical components like air separators, balancing valves and pressure relief valves designed to protect equipment from damage. We only carry genuine OEM Caleffi parts so you can keep your system well-maintained and performing reliably day in and day out.

...

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Caleffi 127342AF1G5 FLOWCAL™ 1/2" PEX EXP. LOW LEAD 1.5 GPM

Caleffi
  • Mfr Part # 127342AF1G5
  • Parts Town # CALE127342AF1G5
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF1G7 FLOWCAL™ 1/2" PEX EXP. LOW LEAD 1.7 GPM

Caleffi
  • Mfr Part # 127342AF1G7
  • Parts Town # CALE127342AF1G7
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF2G0 FLOWCAL 1/2 PEX EXP. LOW LEAD 2 GPM

Caleffi
  • Mfr Part # 127342AF2G0
  • Parts Town # CALE127342AF2G0
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF2G2 FLOWCAL™ 1/2" PEX EXP. LOW LEAD 2.2 GPM

Caleffi
  • Mfr Part # 127342AF2G2
  • Parts Town # CALE127342AF2G2
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF2G5 FLOWCAL™ 1/2" PEX EXP. LOW LEAD 2.5 GPM

Caleffi
  • Mfr Part # 127342AF2G5
  • Parts Town # CALE127342AF2G5
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF2G6 FLOWCAL™ 1/2" PEX EXP. LOW LEAD 2.6 GPM

Caleffi
  • Mfr Part # 127342AF2G6
  • Parts Town # CALE127342AF2G6
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF3G0 FLOWCAL 1/2 PEX EXP. LOW LEAD 3 GPM

Caleffi
  • Mfr Part # 127342AF3G0
  • Parts Town # CALE127342AF3G0
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF3G5 FLOWCAL™ 1/2" PEX EXP. LOW LEAD 3.5 GPM

Caleffi
  • Mfr Part # 127342AF3G5
  • Parts Town # CALE127342AF3G5
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF4G0 FLOWCAL 1/2 PEX EXP. LOW LEAD 4 GPM

Caleffi
  • Mfr Part # 127342AF4G0
  • Parts Town # CALE127342AF4G0
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF4G5 FLOWCAL™ 1/2" PEX EXP. LOW LEAD 4.5 GPM

Caleffi
  • Mfr Part # 127342AF4G5
  • Parts Town # CALE127342AF4G5
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF5G0 FLOWCAL 1/2 PEX EXP. LOW LEAD 5 GPM

Caleffi
  • Mfr Part # 127342AF5G0
  • Parts Town # CALE127342AF5G0
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF6G0 FLOWCAL 1/2 PEX EXP. LOW LEAD 6 GPM

Caleffi
  • Mfr Part # 127342AF6G0
  • Parts Town # CALE127342AF6G0
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF7G0 FLOWCAL 1/2 PEX EXP. LOW LEAD 7 GPM

Caleffi
  • Mfr Part # 127342AF7G0
  • Parts Town # CALE127342AF7G0
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF8G0 FLOWCAL 1/2 PEX EXP. LOW LEAD 8 GPM

Caleffi
  • Mfr Part # 127342AF8G0
  • Parts Town # CALE127342AF8G0
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AF9G0 FLOWCAL 1/2 PEX EXP. LOW LEAD 9 GPM

Caleffi
  • Mfr Part # 127342AF9G0
  • Parts Town # CALE127342AF9G0
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AFG35 FLOWCAL™ 1/2" PEX EXP. LOW LEAD .35 GPM

Caleffi
  • Mfr Part # 127342AFG35
  • Parts Town # CALE127342AFG35
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AFG50 FLOWCAL™ 1/2" PEX EXP. LOW LEAD .5 GPM

Caleffi
  • Mfr Part # 127342AFG50
  • Parts Town # CALE127342AFG50
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127342AFG75 FLOWCAL™ 1/2" PEX EXP. LOW LEAD .75 GPM

Caleffi
  • Mfr Part # 127342AFG75
  • Parts Town # CALE127342AFG75
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127344AF FLOWCAL 1/2 PEX CRIMP LOW LEAD

Caleffi
  • Mfr Part # 127344AF
  • Parts Town # CALE127344AF
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127344AF10G FLOWCAL™ 1/2" PEX CRIMP LOW LEAD 10 GPM

Caleffi
  • Mfr Part # 127344AF10G
  • Parts Town # CALE127344AF10G
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127344AF1G0 FLOWCAL™ 1/2" PEX CRIMP LOW LEAD 1 GPM

Caleffi
  • Mfr Part # 127344AF1G0
  • Parts Town # CALE127344AF1G0
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127344AF1G3 FLOWCAL™ 1/2" PEX CRIMP LOW LEAD 1.3 GPM

Caleffi
  • Mfr Part # 127344AF1G3
  • Parts Town # CALE127344AF1G3
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127344AF1G5 FLOWCAL™ 1/2" PEX CRIMP LOW LEAD 1.5 GPM

Caleffi
  • Mfr Part # 127344AF1G5
  • Parts Town # CALE127344AF1G5
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 127344AF1G7 FLOWCAL™ 1/2" PEX CRIMP LOW LEAD 1.7 GPM

Caleffi
  • Mfr Part # 127344AF1G7
  • Parts Town # CALE127344AF1G7
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

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