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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 521406A MixCal 3-way Mixing Valve 1/2" Press

Caleffi 521406A MixCal 3-way Mixing Valve 1/2" Press

SKU #: CALE521406A   |   MPN #: 521406A

Regular price $200.38
Sale price $200.38 Regular price $0.00
MSRP: $260

Special Order

Caleffi 521409AC MixCal 3-Way Mixing Valve 1/2" Sweat w/Check Valves

Caleffi 521409AC MixCal 3-Way Mixing Valve 1/2" Sweat w/Check Valves

SKU #: CALE521409AC   |   MPN #: 521409AC

Regular price $207.58
Sale price $207.58 Regular price $0.00
MSRP: $270

Special Order

Caleffi 533351HA PressCal Compact PRV ASSE 1003, Single Union 3/4" NPT female union in, FNPT out, gauge

Caleffi 533351HA PressCal Compact PRV ASSE 1003, Single Union 3/4" NPT female union in, FNPT out, gauge

SKU #: CALE533351HA   |   MPN #: 533351HA

Regular price $81.08
Sale price $81.08 Regular price $0.00
MSRP: $94.20

Special Order

Caleffi 521619A MixCal 3-way Mixing Valve 1" Sweat w/ Temp Gauge

Caleffi 521619A MixCal 3-way Mixing Valve 1" Sweat w/ Temp Gauge

SKU #: CALE521619A   |   MPN #: 521619A

Regular price $262.06
Sale price $262.06 Regular price $0.00
MSRP: $350

Special Order

Caleffi 521618AC MixCal 3-way Mixing Valve 1" Pex Expansion w/Check Valves & Temp Gauge

Caleffi 521618AC MixCal 3-way Mixing Valve 1" Pex Expansion w/Check Valves & Temp Gauge

SKU #: CALE521618AC   |   MPN #: 521618AC

Regular price $287.07
Sale price $287.07 Regular price $0.00
MSRP: $387

Special Order

Caleffi 521419A MixCal 3-way Mixing Valve 1/2" Sweat w/ Temp Gauge

Caleffi 521419A MixCal 3-way Mixing Valve 1/2" Sweat w/ Temp Gauge

SKU #: CALE521419A   |   MPN #: 521419A

Regular price $222.20
Sale price $222.20 Regular price $0.00
MSRP: $290

Special Order

Caleffi 533340HA PressCal Compact PRV ASSE 1003, Single Union 1/2" NPT female union in, FNPT out

Caleffi 533340HA PressCal Compact PRV ASSE 1003, Single Union 1/2" NPT female union in, FNPT out

SKU #: CALE533340HA   |   MPN #: 533340HA

Regular price $110.73
Sale price $110.73 Regular price $0.00
MSRP: $126

Special Order

Caleffi 521619AC MixCal 3-way Mixing Valve 1" Sweat w/Check Valves & Temp Gauge

Caleffi 521619AC MixCal 3-way Mixing Valve 1" Sweat w/Check Valves & Temp Gauge

SKU #: CALE521619AC   |   MPN #: 521619AC

Regular price $287.07
Sale price $287.07 Regular price $0.00
MSRP: $387

Special Order

Caleffi 521410A MixCal 3-way Mixing Valve 1/2" NPT w/ Temp Gauge

Caleffi 521410A MixCal 3-way Mixing Valve 1/2" NPT w/ Temp Gauge

SKU #: CALE521410A   |   MPN #: 521410A

Regular price $226.95
Sale price $226.95 Regular price $0.00
MSRP: $300

Special Order

Caleffi 533751HA PressCal Compact PRV ASSE 1003, Single Union 3/4" PEX crimp union in, FNPT out, gauge

Caleffi 533751HA PressCal Compact PRV ASSE 1003, Single Union 3/4" PEX crimp union in, FNPT out, gauge

SKU #: CALE533751HA   |   MPN #: 533751HA

Regular price $94.59
Sale price $94.59 Regular price $0.00
MSRP: $94.59

Special Order

Caleffi 533341HA PressCal Compact PRV ASSE 1003, Single Union 1/2" NPT female union in, FNPT out, gauge

Caleffi 533341HA PressCal Compact PRV ASSE 1003, Single Union 1/2" NPT female union in, FNPT out, gauge

SKU #: CALE533341HA   |   MPN #: 533341HA

Regular price $119.69
Sale price $119.69 Regular price $0.00
MSRP: $142

Special Order

Caleffi 521359A 3-Way ANTI-SCALD Mixing Valve 3/4" Sweat w/Check Valves

Caleffi 521359A 3-Way ANTI-SCALD Mixing Valve 3/4" Sweat w/Check Valves

SKU #: CALE521359A   |   MPN #: 521359A

Regular price $142.70
Sale price $142.70 Regular price $0.00
MSRP: $174

Special Order

Caleffi 521419AC MixCal 3-way Mixing Valve 1/2" Sweat w/Check Valves & Temp Gauge

Caleffi 521419AC MixCal 3-way Mixing Valve 1/2" Sweat w/Check Valves & Temp Gauge

SKU #: CALE521419AC   |   MPN #: 521419AC

Regular price $238.80
Sale price $238.80 Regular price $0.00
MSRP: $315

Special Order

Caleffi 521362A 3-Way ANTI-SCALD Mixing Valve 1" NPT w/Check Valves

Caleffi 521362A 3-Way ANTI-SCALD Mixing Valve 1" NPT w/Check Valves

SKU #: CALE521362A   |   MPN #: 521362A

Regular price $168.61
Sale price $168.61 Regular price $0.00
MSRP: $213

Special Order

Caleffi 533650HA PressCal Compact PRV ASSE 1003, Single Union 3/4" press union in, FNPT out

Caleffi 533650HA PressCal Compact PRV ASSE 1003, Single Union 3/4" press union in, FNPT out

SKU #: CALE533650HA   |   MPN #: 533650HA

Regular price $74.71
Sale price $74.71 Regular price $0.00
MSRP: $80.40

Special Order

Caleffi 220400A 1/2" NPT Angled TRV Body

Caleffi 220400A 1/2" NPT Angled TRV Body

SKU #: CALE220400A   |   MPN #: 220400A

Regular price $64.59
Sale price $64.59 Regular price $0.00
MSRP: $72

Special Order

Caleffi 521506AC MixCal 3-way Mixing Valve 3/4" Press w/Check Valves

Caleffi 521506AC MixCal 3-way Mixing Valve 3/4" Press w/Check Valves

SKU #: CALE521506AC   |   MPN #: 521506AC

Regular price $248.40
Sale price $248.40 Regular price $0.00
MSRP: $331

Special Order

Caleffi 221400A 1/2" NPT Straight TRV Body

Caleffi 221400A 1/2" NPT Straight TRV Body

SKU #: CALE221400A   |   MPN #: 221400A

Regular price $64.59
Sale price $64.59 Regular price $0.00
MSRP: $72

Special Order

Caleffi 521358A 3/4" PEX exp, inlet check valves

Caleffi 521358A 3/4" PEX exp, inlet check valves

SKU #: CALE521358A   |   MPN #: 521358A

Regular price $142.70
Sale price $142.70 Regular price $0.00
MSRP: $174

Special Order

Caleffi 280166A Anticondensing Valve 1" NPT 140 F

Caleffi 280166A Anticondensing Valve 1" NPT 140 F

SKU #: CALE280166A   |   MPN #: 280166A

Regular price $322.06
Sale price $322.06 Regular price $0.00
MSRP: $416

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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