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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

Brass backflow preventer with 1/2 inch sweat connections and black label band.

Caleffi 573493A Backflow Preventer 1/2 Inch Sweat Brass

SKU #: CALE573493A   |   MPN #: 573493A
$93.75
$93.75 $0.00
MSRP: $113

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

Brass backflow preventer with 1/2" press connection and black rubber seals.

Caleffi 574064A Backflow Preventer 1/2" Press ASSE 1013

SKU #: CALE574064A   |   MPN #: 574064A
$338.04
$338.04 $0.00
MSRP: $452

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

Brass discharge air gap assembly with black valve handles and black base cap, multiple outlet ports.

Caleffi 59980 Discharge air gap for 574004A

SKU #: CALE59980   |   MPN #: 59980
$53.28
$53.28 $0.00
MSRP: $64.10

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

Brass backflow preventer with 1/2" sweat connections and black identification band.

Caleffi 573409A Backflow Preventer 1/2" Sweat ASSE 1012

SKU #: CALE573409A   |   MPN #: 573409A
$91.60
$91.60 $0.00
MSRP: $110

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

Brass backflow preventer with black cylindrical base and multiple outlet connections and valves.

Caleffi 574066A Backflow Preventer 1" press ASSE 1013

SKU #: CALE574066A   |   MPN #: 574066A
$450.21
$450.21 $0.00
MSRP: $593

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

Brass manifold assembly with black valve body, multiple connection ports, pressure gauge, and flow control mechanisms.

Caleffi 574166A 1" press x 1" press

SKU #: CALE574166A   |   MPN #: 574166A
$553.47
$553.47 $0.00
MSRP: $750

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

Brass backflow preventer with 1-1/4" press connections, dual check valves, and black isolation ball valves.

Caleffi 574706A Backflow Preventer 1-1/4" press ASSE 1013

SKU #: CALE574706A   |   MPN #: 574706A
$816.41
$816.41 $0.00
MSRP: $1,106

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

Brass water pressure regulator assembly with black solenoid valve, gauge, and multiple threaded connections.

Caleffi 574161A 1" FNPT x 1" NPT male union

SKU #: CALE574161A   |   MPN #: 574161A
$507.08
$507.08 $0.00
MSRP: $685

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

Silver metal double-ended wrench with open circles at each end and text markings on the handle.

Caleffi 387100 PEX Fitting Wrench 26mm-30mm

SKU #: CALE387100   |   MPN #: 387100
$52.18
$52.18 $0.00
MSRP: $56.60

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

Black and brass dirt separator with 3/4 inch NPT connections and integral pump attachment.

Caleffi NA545355 Dirt Separator 3/4 Inch NPT

SKU #: CALENA545355   |   MPN #: NA545355
$230.64
$230.64 $0.00
MSRP: $314

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

Caleffi dual gauge with black case showing pressure and temperature scales with two pointers.

Caleffi NA503040 Temperature\Pressure Gage 1/4" Thread

SKU #: CALENA503040   |   MPN #: NA503040
$41.40
$41.40 $0.00
MSRP: $45.10

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

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

Caleffi NA502740A Automatic Air Vent 1/2 Inch Brass

SKU #: CALENA502740A   |   MPN #: NA502740A
$30.51
$30.51 $0.00
MSRP: $35.80

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

Caleffi dirt separator with black cylindrical body, brass fittings, copper connections, and yellow warning label on bottom.

Caleffi NA545356 Dirt Separator 1 Inch NPT

SKU #: CALENA545356   |   MPN #: NA545356
$262.43
$262.43 $0.00
MSRP: $361

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

Caleffi NA570974 Reload Resin 4 Bag Bucket

SKU #: CALENA570974   |   MPN #: NA570974
$921.07
$921.07 $0.00
MSRP: $1,194

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

Brass-colored cylindrical safety cap with ridged grip surface and threaded base.

Caleffi R59681 Hygroscopic Safety Cap- 5020+5021

SKU #: CALER59681   |   MPN #: R59681
$22.62
$22.62 $0.00
MSRP: $23.50

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

Brass flow meter with threaded connections, clear viewing tube with numbered scale markings, and adjustment knob on top.

Caleffi NA669150 Flow meter 1/4 to 1 gpm

SKU #: CALENA669150   |   MPN #: NA669150
$38.17
$38.17 $0.00
MSRP: $40.80

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

Brass flow meter with threaded connections, numbered scale visible through transparent tube window.

Caleffi NA669250 Flow meter 1/2 to 2 gpm

SKU #: CALENA669250   |   MPN #: NA669250
$38.17
$38.17 $0.00
MSRP: $40.80

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

Small dark green plastic bleed screw with ribbed knurled cap and pointed tip.

Caleffi R56142 BLEED SCREW FOR AAV 5026

SKU #: CALER56142   |   MPN #: R56142
$11.98
$11.98 $0.00
MSRP: $11.98

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

Dark green plastic cylindrical vent cap with ribbed sides and small hole.

Caleffi R56214 Plastic Vent Cap

SKU #: CALER56214   |   MPN #: R56214
$12.04
$12.04 $0.00
MSRP: $12.04

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

Brass threaded air vent cap with ribbed knurled grip surface and central opening.

Caleffi R59119 Discal Air Vent Cap (551)

SKU #: CALER59119   |   MPN #: R59119
$16.97
$16.97 $0.00
MSRP: $16.97

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.
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