Skip to content

Free Shipping on All Orders!

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.

Compare (0/5)

1812 products

Brass automatic air vent with 1/8 inch NPT connection and black adjustment screw on top.

Caleffi 502710A Automatic Air Vent 1/8 Inch NPT Brass

SKU #: CALE502710A   |   MPN #: 502710A

Regular price $25.08
Sale price $25.08 Regular price $0.00
MSRP: $26

Available in stock

Brass automatic air vent valve with 3/8" connection and adjustment screw on top.

Caleffi 502630 ROBOCAL Automatic Air Vent 3/8"

SKU #: CALE502630   |   MPN #: 502630

Regular price $26.75
Sale price $26.75 Regular price $0.00
MSRP: $26.75

Available in stock

Brass air vent valve with black hygroscopic cap and male threaded connection.

Caleffi 502113A Minical 1/8" with Check, hygroscopic cap

SKU #: CALE502113A   |   MPN #: 502113A

Regular price $28.33
Sale price $28.33 Regular price $0.00
MSRP: $32.40

Special Order. Expect 4-6 weeks for delivery, subject to change

Gray Caleffi Z-One Relay switching control unit with terminal block on right side and manufacturer labeling on front face.

Caleffi ZVR103 Z-One Relay Series - 3 Zone Valve Switching Relay

SKU #: CALEZVR103   |   MPN #: ZVR103

Regular price $177.19
Sale price $177.19 Regular price $0.00
MSRP: $219

Available in stock

Gray Caleffi Z-One Relay switching module with labeled front panel and terminal connectors on right side.

Caleffi ZVR106 Z-One Relay Series - 6 Zone Valve Switching Relay

SKU #: CALEZVR106   |   MPN #: ZVR106

Regular price $266.13
Sale price $266.13 Regular price $0.00
MSRP: $338

Available in stock

Caleffi Z-One Relay ZSR103 zone pump control with three terminal connections and power indicator light.

Caleffi ZSR103 Z-One 3 zone pump Control

SKU #: CALEZSR103   |   MPN #: ZSR103

Regular price $228.10
Sale price $228.10 Regular price $0.00
MSRP: $289

Available in stock

Caleffi ZSR106 Zone Relay control unit with gray casing, black label, and terminal connections on right side.

Caleffi ZSR106 Z-One 6 zone pump Control

SKU #: CALEZSR106   |   MPN #: ZSR106

Regular price $314.05
Sale price $314.05 Regular price $0.00
MSRP: $414

Available in stock

Caleffi ZSR101 Z-One single zone pump relay

SKU #: CALEZSR101   |   MPN #: ZSR101

Regular price $97.43
Sale price $97.43 Regular price $0.00
MSRP: $122

Available in stock

Thermometer gauge with silver metal casing and white dial showing temperature scale in Fahrenheit and Celsius.

Caleffi F67037 O-Ring for Gauge Adaptor - 10 pack

SKU #: CALEF67037x10   |   MPN #: F67037

Regular price $37.48
Sale price $37.48 Regular price $0.00
MSRP: $37.48

Special Order. Expect 4-6 weeks for delivery, subject to change

Thermometer gauge with dial displaying temperature scale in Fahrenheit and Celsius.

Caleffi F67037 O-Ring for Gauge Adaptor - 50 pack

SKU #: CALEF67037x50   |   MPN #: F67037

Regular price $102.71
Sale price $102.71 Regular price $0.00
MSRP: $102.71

Special Order. Expect 4-6 weeks for delivery, subject to change

Circular pressure gauge with metal casing, white dial face, and black needle indicator showing temperature or pressure scale.

Caleffi F67037 O-Ring for Gauge Adaptor - 5 pack

SKU #: CALEF67037x5   |   MPN #: F67037

Regular price $25.08
Sale price $25.08 Regular price $0.00
MSRP: $25.08

Special Order. Expect 4-6 weeks for delivery, subject to change

Analog dial gauge with black pointer showing temperature scale from 0 to 220 degrees Fahrenheit.

Caleffi F67037 O-Ring for Gauge Adaptor - 25 pack

SKU #: CALEF67037x25   |   MPN #: F67037

Regular price $66.88
Sale price $66.88 Regular price $0.00
MSRP: $66.88

Special Order. Expect 4-6 weeks for delivery, subject to change

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.

Free Shipping on Everything!
30 Days Free Returns
Secure Payment
Expert Customer Support