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Collection: Caleffi

Founded in 1956 in Italy, Caleffi is a global leader in hydronic heating, plumbing, and air conditioning components. From thermostatic mixing valves and pressure reducing valves to air separators and zone valves, Caleffi engineers for precision, efficiency, and reliability.

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1805 products

Caleffi 338452 Radiator Valve Thermostatic Elbow 3/4"M

Caleffi 338452 Radiator Valve Thermostatic Elbow 3/4"M

SKU #: CALE338452   |   MPN #: 338452

Regular price $67.24
Sale price $67.24 Regular price $0.00
MSRP: $75.80

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Caleffi 519006 Differential Bypass Valve 1"

Caleffi 519006 Differential Bypass Valve 1"

SKU #: CALE519006   |   MPN #: 519006

Regular price $76.50
Sale price $76.50 Regular price $0.00
MSRP: $87.30

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Caleffi 535370HA PressCal PRV ASSE 1003, Female 1 1/4" NPT

Caleffi 535370HA PressCal PRV ASSE 1003, Female 1 1/4" NPT

SKU #: CALE535370HA   |   MPN #: 535370HA

Regular price $336.64
Sale price $336.64 Regular price $0.00
MSRP: $453

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Caleffi 535390HA PressCal PRV ASSE 1003, Female 2" NPT

Caleffi 535390HA PressCal PRV ASSE 1003, Female 2" NPT

SKU #: CALE535390HA   |   MPN #: 535390HA

Regular price $570.67
Sale price $570.67 Regular price $0.00
MSRP: $802

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Caleffi 127366AF G35 FlowCal PIBV Low Lead 1" Press .35 GPM

Caleffi 127366AF G35 FlowCal PIBV Low Lead 1" Press .35 GPM

SKU #: CALE127366AFG35   |   MPN #: 127366AF G35

Regular price $166.43
Sale price $166.43 Regular price $0.00
MSRP: $208

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Caleffi 535380HA PressCal PRV ASSE 1003, Female 1 1/2" NPT

Caleffi 535380HA PressCal PRV ASSE 1003, Female 1 1/2" NPT

SKU #: CALE535380HA   |   MPN #: 535380HA

Regular price $465.20
Sale price $465.20 Regular price $0.00
MSRP: $650

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Caleffi 127366AF 9G0 FlowCal PIBV Low Lead 1" Press 9 GPM

Caleffi 127366AF 9G0 FlowCal PIBV Low Lead 1" Press 9 GPM

SKU #: CALE127366AF9G0   |   MPN #: 127366AF 9G0

Regular price $172.53
Sale price $172.53 Regular price $0.00
MSRP: $208

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Caleffi 127369AF FlowCal PIBV Low Lead 1" Sweat

Caleffi 127369AF FlowCal PIBV Low Lead 1" Sweat

SKU #: CALE127369AF   |   MPN #: 127369AF

Regular price $135.47
Sale price $135.47 Regular price $0.00
MSRP: $155

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Caleffi 535371HA PressCal PRV ASSE 1003, Female 1 1/4" NPT w/ Pressure Gauge

Caleffi 535371HA PressCal PRV ASSE 1003, Female 1 1/4" NPT w/ Pressure Gauge

SKU #: CALE535371HA   |   MPN #: 535371HA

Regular price $346.60
Sale price $346.60 Regular price $0.00
MSRP: $468

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Caleffi 519566A Differential Bypass 3/4" Press Fit

Caleffi 519566A Differential Bypass 3/4" Press Fit

SKU #: CALE519566A   |   MPN #: 519566A

Regular price $154.20
Sale price $154.20 Regular price $0.00
MSRP: $186

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Caleffi 301341 Angled One-Pipe Valve System1/2"M X 3/4"

Caleffi 301341 Angled One-Pipe Valve System1/2"M X 3/4"

SKU #: CALE301341   |   MPN #: 301341

Regular price $90.66
Sale price $90.66 Regular price $0.00
MSRP: $106

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Caleffi 127369AF 1G7 FlowCal PIBV Low Lead 1" Sweat 1.7 GPM

Caleffi 127369AF 1G7 FlowCal PIBV Low Lead 1" Sweat 1.7 GPM

SKU #: CALE127369AF1G7   |   MPN #: 127369AF 1G7

Regular price $132.87
Sale price $132.87 Regular price $0.00
MSRP: $160

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Caleffi 535391HA PressCal PRV ASSE 1003, Female 2" NPT w/ Pressure Gauge

Caleffi 535391HA PressCal PRV ASSE 1003, Female 2" NPT w/ Pressure Gauge

SKU #: CALE535391HA   |   MPN #: 535391HA

Regular price $580.73
Sale price $580.73 Regular price $0.00
MSRP: $816

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Caleffi 535381HA PressCal PRV ASSE 1003, Female 1 1/2" NPT w/ Pressure Gauge

Caleffi 535381HA PressCal PRV ASSE 1003, Female 1 1/2" NPT w/ Pressure Gauge

SKU #: CALE535381HA   |   MPN #: 535381HA

Regular price $473.84
Sale price $473.84 Regular price $0.00
MSRP: $663

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Caleffi 519502A Differential Bypass 3/4" NPT

Caleffi 519502A Differential Bypass 3/4" NPT

SKU #: CALE519502A   |   MPN #: 519502A

Regular price $138.81
Sale price $138.81 Regular price $0.00
MSRP: $164

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Caleffi 519600A Differential Bypass 1" NPT with 1" NPT

Caleffi 519600A Differential Bypass 1" NPT with 1" NPT

SKU #: CALE519600A   |   MPN #: 519600A

Regular price $203.51
Sale price $203.51 Regular price $0.00
MSRP: $255

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Caleffi 127369AF 1G3 FlowCal PIBV Low Lead 1" Sweat 1.3 GPM

Caleffi 127369AF 1G3 FlowCal PIBV Low Lead 1" Sweat 1.3 GPM

SKU #: CALE127369AF1G3   |   MPN #: 127369AF 1G3

Regular price $132.87
Sale price $132.87 Regular price $0.00
MSRP: $160

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Caleffi 132537AFC QuickSetter+ Balancing Valve w/ Flowmeter Union, 3/4" Press .5 - 1.75 GPM & Temp Gauge Low Lead

Caleffi 132537AFC QuickSetter+ Balancing Valve w/ Flowmeter Union, 3/4" Press .5 - 1.75 GPM & Temp Gauge Low Lead

SKU #: CALE132537AFC   |   MPN #: 132537AFC

Regular price $338.14
Sale price $338.14 Regular price $0.00
MSRP: $444

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Caleffi 437516 1/2" Compression Fitting(2 pcs per pack)

Caleffi 437516 1/2" Compression Fitting(2 pcs per pack)

SKU #: CALE437516   |   MPN #: 437516

Regular price $16.59
Sale price $16.59 Regular price $0.00
MSRP: $16.59

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Caleffi 127366AF G50 FlowCal PIBV Low Lead 1" Press .5 GPM

Caleffi 127366AF G50 FlowCal PIBV Low Lead 1" Press .5 GPM

SKU #: CALE127366AFG50   |   MPN #: 127366AF G50

Regular price $166.43
Sale price $166.43 Regular price $0.00
MSRP: $208

Special Order

Caleffi FAQ

What is Caleffi?

Caleffi is a manufacturer of hydronic heating and plumbing components, known for high-quality valves, fittings, and system solutions designed for efficiency and reliability.

What products does Caleffi offer?

Caleffi offers mixing valves, pressure reducing valves (PRVs), pressure relief valves, air separators, zone valves, and hydronic system controls for plumbing and HVAC applications.

What is a Caleffi mixing valve used for?

Caleffi mixing valves, including thermostatic and temperature mixing valves, regulate water temperature to improve safety, comfort, and system efficiency.

What does a Caleffi pressure reducing valve do?

A Caleffi pressure reducing valve (PRV) controls incoming water pressure, protecting plumbing systems and fixtures from damage caused by high pressure.

What is a Caleffi air separator?

Caleffi air separators remove air from hydronic heating systems, improving efficiency, reducing noise, and preventing system damage.

Are Caleffi products high quality?

Caleffi products are made from premium materials and engineered for durability, offering long-lasting performance in demanding hydronic and plumbing systems.

Where are Caleffi products made?

Caleffi was founded in Italy and operates globally, with manufacturing and distribution supporting markets including Caleffi North America.

Can Caleffi products be used in residential and commercial systems?

Yes, Caleffi components are designed for residential, commercial, and industrial hydronic systems, ensuring consistent performance across applications.

Do Caleffi products help improve energy efficiency?

By regulating temperature, pressure, and air removal, Caleffi valves and components help hydronic systems operate more efficiently and reduce energy waste.

Why choose Caleffi for hydronic systems?

Caleffi stands out for precision engineering, reliable performance, and a complete range of hydronic solutions that support safe, efficient plumbing and heating systems.

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