Free Shipping on All Orders!

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)

1805 products

Brass boiler trim kit with gray expansion tank, valve assembly, and backflow preventer connected by copper tubing.

Caleffi NA553369R Boiler Trim Kit, 1" Sweat, 4.4Gal with ASSE 1013 Back Flow

SKU #: CALENA553369R   |   MPN #: NA553369R
$787.57
$787.57 $0.00
MSRP: $1,102

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

Brass boiler trim kit with gray expansion tank, pressure relief valve, and backflow preventer assembly.

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

SKU #: CALENA553379   |   MPN #: NA553379
$579.95
$579.95 $0.00
MSRP: $795

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

Brass boiler trim kit with gray expansion tank, pressure relief valve, and backflow preventer assembly.

Caleffi NA553372 Boiler Trim Kit, 1 1/4" NPT, 4.4Gal with ASSE 1012 Back Flow

SKU #: CALENA553372   |   MPN #: NA553372
$591.45
$591.45 $0.00
MSRP: $812

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

Caleffi 200000 Thermostatic Control Head

SKU #: CALE200000   |   MPN #: 200000
$61.09
$61.09 $0.00
MSRP: $71.30

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

White and black cylindrical replacement cartridge with threaded brass connector base.

Caleffi 535006HA Replacement cartridge for 535HA 1/2", 3/4", 1"

SKU #: CALE535006HA   |   MPN #: 535006HA
$62.38
$62.38 $0.00
MSRP: $75.60

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

Caleffi Hydronic Solutions logo with green circular icon and company text on white background.

Caleffi 201000 THERMO CONTROL HEAD W/REMOTE ADJ KNOB

SKU #: CALE201000   |   MPN #: 201000
$104.63
$104.63 $0.00
MSRP: $127

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

Caleffi thermostatic valve head with white body, control dial, attached capillary tube, wooden probe, and rubber gasket.

Caleffi 203502 Thermo.Contro Head w/compact probe

SKU #: CALE203502   |   MPN #: 203502
$189.03
$189.03 $0.00
MSRP: $240

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

Caleffi replacement cartridge with brass top, metal mesh filter, black rubber seals, and white threaded body with black cap.

Caleffi 535004 REPLACEMENT CARTRIDGE X 5350-5351 1/2"-3

SKU #: CALE535004   |   MPN #: 535004
$56.10
$56.10 $0.00
MSRP: $66.80

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

Caleffi replacement cartridge with white body, black cap, and brass fitting connector.

Caleffi 535009HA Replacement cartridge for 535HA 1-1/4", 1-1/2", 2"

SKU #: CALE535009HA   |   MPN #: 535009HA
$176.92
$176.92 $0.00
MSRP: $228

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

White wall-mounted thermostat with dial control, remote sensor probe with coiled cable, and adjustable knob attachment.

Caleffi 472000 THERMO CONTROL HWAED W/REMOTE+ADJ KNOB

SKU #: CALE472000   |   MPN #: 472000
$190.26
$190.26 $0.00
MSRP: $242

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

Brass automatic air vent with 1/2 inch NPT connection and threaded cap.

Caleffi 502243A Automatic Air Vent 1/2 Inch NPT Brass

SKU #: CALE502243A   |   MPN #: 502243A
$41.45
$41.45 $0.00
MSRP: $50.60

Available in stock

Caleffi hygroscopic air vent with white cap, metal hexagonal body, and male NPT threaded connection.

Caleffi 508013A Hygros. Air Vent 1/8" NPT Male(25pcs)

SKU #: CALE508013A   |   MPN #: 508013A
$13.95
$13.95 $0.00
MSRP: $13.95

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

Brass automatic air vent with 1/2" NPT male connection and black knob valve on top.

Caleffi 502040A MINICAL Automatic air vent 1/2" NPT Male

SKU #: CALE502040A   |   MPN #: 502040A
$21.16
$21.16 $0.00
MSRP: $21.16

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

Brass automatic air vent with black adjustment screw on top and threaded NPT connection at bottom.

Caleffi 502115A Automatic Air Vent 1/8 Inch NPT Brass

SKU #: CALE502115A   |   MPN #: 502115A
$25.70
$25.70 $0.00
MSRP: $28.30

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

Brass automatic air vent with 1/4" connection and black valve cap on top.

Caleffi 502720A ROBOCAL Automatic air vent 1/4" With check

SKU #: CALE502720A   |   MPN #: 502720A
$25.19
$25.19 $0.00
MSRP: $27.50

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

Brass automatic air vent with 1/2" metric connection and black knurled adjustment screw on top.

Caleffi 502640 ROBOCAL Automatic air vent 1/2" Metric

SKU #: CALE502640   |   MPN #: 502640
$25.31
$25.31 $0.00
MSRP: $27.70

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

Caleffi logo and "Hydronic Solutions" text on white background.

Caleffi 501502A MAXCAL Automatic air vent 3/4" NPT Female

SKU #: CALE501502A   |   MPN #: 501502A
$274.35
$274.35 $0.00
MSRP: $391

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

Brass automatic air vent with 1/2 inch NPT connections and ribbed cap on cylindrical body.

Caleffi 502043A Automatic Air Vent 1/2 Inch NPT Brass

SKU #: CALE502043A   |   MPN #: 502043A
$27.02
$27.02 $0.00
MSRP: $29.60

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

Brass automatic air vent with cylindrical body, knurled cap, and threaded male connection port.

Caleffi 502043CST Automatic Air Vent 1/2 Inch Brass

SKU #: CALE502043CST   |   MPN #: 502043 CST
$26.53
$26.53 $0.00
MSRP: $29.60

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

Brass automatic air vent with cylindrical body, ribbed top cap, and 1/2 inch NPT threaded connector.

Caleffi 502343A Automatic Air Vent 1/2 Inch NPT Brass

SKU #: CALE502343A   |   MPN #: 502343A
$48.41
$48.41 $0.00
MSRP: $59.90

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