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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 NA502640A PLUMBVENT 1/2" NPT Low Lead Air Vent with Hygroscopic Cap

Caleffi NA502640A PLUMBVENT 1/2" NPT Low Lead Air Vent with Hygroscopic Cap

SKU #: CALENA502640A   |   MPN #: NA502640A

Regular price $48.13
Sale price $48.13 Regular price $0.00
MSRP: $62.20

Available in stock

Caleffi 546335AM DirtMagPRO 1-1/4" sweat

Caleffi 546335AM DirtMagPRO 1-1/4" sweat

SKU #: CALE546335AM   |   MPN #: 546335AM

Regular price $282.49
Sale price $282.49 Regular price $0.00
MSRP: $402

Available in stock

Caleffi 546341AM DirtMagPRO 1-1/2" sweat

Caleffi 546341AM DirtMagPRO 1-1/2" sweat

SKU #: CALE546341AM   |   MPN #: 546341AM

Regular price $307.06
Sale price $307.06 Regular price $0.00
MSRP: $523

Available in stock

Caleffi 546366AM DirtMagPRO 1" press

Caleffi 546366AM DirtMagPRO 1" press

SKU #: CALE546366AM   |   MPN #: 546366AM

Regular price $194.28
Sale price $194.28 Regular price $0.00
MSRP: $315

Available in stock

Caleffi 521516A MixCal 3-way Mixing Valve 3/4" Press w/ Temp Gauge

Caleffi 521516A MixCal 3-way Mixing Valve 3/4" Press w/ Temp Gauge

SKU #: CALE521516A   |   MPN #: 521516A

Regular price $199.61
Sale price $199.61 Regular price $0.00
MSRP: $313

Available in stock

Caleffi 551054A DISCAL Air Separator 2" Sweat

Caleffi 551054A DISCAL Air Separator 2" Sweat

SKU #: CALE551054A   |   MPN #: 551054A

Regular price $308.92
Sale price $308.92 Regular price $0.00
MSRP: $503

Available in stock

Caleffi 535951HA PressCal PRV ASSE 1003, 3/4" Sweat w/ Pressure Gauge

Caleffi 535951HA PressCal PRV ASSE 1003, 3/4" Sweat w/ Pressure Gauge

SKU #: CALE535951HA   |   MPN #: 535951HA

Regular price $120.50
Sale price $120.50 Regular price $0.00
MSRP: $166

Available in stock

Caleffi NA51259 Serviceable low lead check 3/4" sweat

Caleffi NA51259 Serviceable low lead check 3/4" sweat

SKU #: CALENA51259   |   MPN #: NA51259

Regular price $77.68
Sale price $77.68 Regular price $0.00
MSRP: $86.70

Available in stock

Caleffi NA51369 Serviceable low lead Check Valve 1" sweat

Caleffi NA51369 Serviceable low lead Check Valve 1" sweat

SKU #: CALENA51369   |   MPN #: NA51369

Regular price $109.22
Sale price $109.22 Regular price $0.00
MSRP: $123

Available in stock

Caleffi 521506A MixCal 3-way Mixing Valve 3/4" Press

Caleffi 521506A MixCal 3-way Mixing Valve 3/4" Press

SKU #: CALE521506A   |   MPN #: 521506A

Regular price $169.41
Sale price $169.41 Regular price $0.00
MSRP: $267

Available in stock

Caleffi 520519A AngleMix 3- Way Mixing valve 3/4" SWTw/probe

Caleffi 520519A AngleMix 3- Way Mixing valve 3/4" SWTw/probe

SKU #: CALE520519A   |   MPN #: 520519A

Regular price $196.77
Sale price $196.77 Regular price $0.00
MSRP: $300

Available in stock

Caleffi 337221A 1/4" NPT Drain Cock w/Metal Seal

Caleffi 337221A 1/4" NPT Drain Cock w/Metal Seal

SKU #: CALE337221A   |   MPN #: 337221A

Regular price $14.60
Sale price $14.60 Regular price $0.00
MSRP: $14.60

Available in stock

Caleffi ZSR104 Z-One 4 zone pump Control

Caleffi ZSR104 Z-One 4 zone pump Control

SKU #: CALEZSR104   |   MPN #: ZSR104

Regular price $254.32
Sale price $254.32 Regular price $0.00
MSRP: $338

Available in stock

Caleffi 520516A AngleMix 3- Way Mixing valve 3/4" Press Temp Probe

Caleffi 520516A AngleMix 3- Way Mixing valve 3/4" Press Temp Probe

SKU #: CALE520516A   |   MPN #: 520516A

Regular price $237.48
Sale price $237.48 Regular price $0.00
MSRP: $313

Special Order

Caleffi 251004A High Capacity Solar Air Vent 1/2" NPT

Caleffi 251004A High Capacity Solar Air Vent 1/2" NPT

SKU #: CALE251004A   |   MPN #: 251004A

Regular price $146.03
Sale price $146.03 Regular price $0.00
MSRP: $173

Special Order

Caleffi 343452 Straight Lockshield 1/2" X 3/4"

Caleffi 343452 Straight Lockshield 1/2" X 3/4"

SKU #: CALE343452   |   MPN #: 343452

Regular price $50.80
Sale price $50.80 Regular price $0.00
MSRP: $52.20

Special Order

Caleffi 342452 Elbow Lockshield 1/2"M x 3/4"M

Caleffi 342452 Elbow Lockshield 1/2"M x 3/4"M

SKU #: CALE342452   |   MPN #: 342452

Regular price $48.59
Sale price $48.59 Regular price $0.00
MSRP: $49.70

Special Order

Caleffi NA553379 Boiler Trim Kit, 1 1/4" Sweat, 4.4Gal with ASSE 1012 Back Flow

Caleffi NA553379 Boiler Trim Kit, 1 1/4" Sweat, 4.4Gal with ASSE 1012 Back Flow

SKU #: CALENA553379   |   MPN #: NA553379

Regular price $568.81
Sale price $568.81 Regular price $0.00
MSRP: $819

Special Order

Caleffi NA553369 Boiler Trim Kit, 1" Sweat, 4.4Gal with ASSE 1012 Back Flow

Caleffi NA553369 Boiler Trim Kit, 1" Sweat, 4.4Gal with ASSE 1012 Back Flow

SKU #: CALENA553369   |   MPN #: NA553369

Regular price $497.06
Sale price $497.06 Regular price $0.00
MSRP: $705

Special Order

Caleffi NA553366 Boiler Trim Kit, 1" Press, 4.4Gal with ASSE 1012 Back Flow

Caleffi NA553366 Boiler Trim Kit, 1" Press, 4.4Gal with ASSE 1012 Back Flow

SKU #: CALENA553366   |   MPN #: NA553366

Regular price $539.93
Sale price $539.93 Regular price $0.00
MSRP: $773

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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