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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

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Caleffi 502620A ROBOCAL Automatic air vent 1/4"

SKU #: CALE502620A   |   MPN #: 502620A
$20.23
$20.23 $0.00
MSRP: $20.23

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

Caleffi flow meter with brass fittings, black body, graduated scale display, and metal ring attachment.

Caleffi F0000942 Replacement flow meter 3 to 10 GPM

SKU #: CALEF0000942   |   MPN #: F0000942
$111.24
$111.24 $0.00
MSRP: $137

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

Black and brass flow meter with measurement scale, side adjustment knobs, and metal ring connector at bottom.

Caleffi F0000940 Replacement flow meter for QS+ 0.5 to 1.75 GPM

SKU #: CALEF0000940   |   MPN #: F0000940
$111.24
$111.24 $0.00
MSRP: $137

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

Black and brass Caleffi flow meter with digital display, adjustment knobs, and threaded brass connection fitting.

Caleffi F0000941 Replacement flow meter for QS+ 2.0 to 7.0 GPM

SKU #: CALEF0000941   |   MPN #: F0000941
$111.24
$111.24 $0.00
MSRP: $137

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

Caleffi flow meter with brass fittings, black measuring body, and attached ring connector.

Caleffi F0000944 Replacement flow meter 8 to 32 GPM

SKU #: CALEF0000944   |   MPN #: F0000944
$118.00
$118.00 $0.00
MSRP: $146

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

Caleffi flow meter with brass top and bottom fittings, black body with measurement scale, and metal ring attachment.

Caleffi F0000947 Replacement flow meter 38 to 148 GPM

SKU #: CALEF0000947   |   MPN #: F0000947
$123.26
$123.26 $0.00
MSRP: $153

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

Caleffi flow meter with brass fittings, black measuring body, and circular gauge ring attachment.

Caleffi F0000948 Replacement flow meter 55 to 210 GPM

SKU #: CALEF0000948   |   MPN #: F0000948
$123.26
$123.26 $0.00
MSRP: $153

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

Caleffi flow meter with black cylindrical body, brass fittings, scale markings, and red indicator needle.

Caleffi F0000945 Replacement flow meter 12 to 50 GPM

SKU #: CALEF0000945   |   MPN #: F0000945
$118.00
$118.00 $0.00
MSRP: $146

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

Caleffi Hydronic Solutions logo in green with company name and tagline.

Caleffi 6686G5S1A TwistFlow Radiant Manifold Assembly 7 loop 1"

SKU #: CALE6686G5S1A   |   MPN #: 6686G5S1A
$871.67
$871.67 $0.00
MSRP: $1,099

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

Caleffi brass radiant manifold assembly with dual loops, shut-off valves, flow meters, and connection ports.

Caleffi 6687C5S1A IN TwistFlow Radiant Manifold Assembly 3 loop 1 1/4" INVERTED

SKU #: CALE6687C5S1AIN   |   MPN #: 6687C5S1A IN
$591.43
$591.43 $0.00
MSRP: $737

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

Caleffi flow meter with black cylindrical body, brass fittings, scale markings, and adjustment knobs.

Caleffi F0000946 Replacement flow meter 30 to 105 GPM

SKU #: CALEF0000946   |   MPN #: F0000946
$123.26
$123.26 $0.00
MSRP: $153

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

Caleffi TwistFlow radiant manifold assembly with dual brass headers, five loops, pressure gauges, and shut-off valves.

Caleffi 6686E5S1A IN TwistFlow Radiant Manifold Assembly 5 loop 1" INVERTED

SKU #: CALE6686E5S1AIN   |   MPN #: 6686E5S1A IN
$715.24
$715.24 $0.00
MSRP: $897

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

Caleffi TwistFlow radiant manifold assembly with seven brass loops, pressure gauges, red and blue ball valves, and metal moun

Caleffi 6686G5S1A IN TwistFlow Radiant Manifold Assembly 7 loop 1" INVERTED

SKU #: CALE6686G5S1AIN   |   MPN #: 6686G5S1A IN
$871.67
$871.67 $0.00
MSRP: $1,099

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

Caleffi radiant manifold assembly with dual brass distribution bars, four loops each, shut-off valves, and pressure gauges.

Caleffi 6687D5S1A IN TwistFlow Radiant Manifold Assembly 4 loop 1 1/4" INVERTED

SKU #: CALE6687D5S1AIN   |   MPN #: 6687D5S1A IN
$670.50
$670.50 $0.00
MSRP: $840

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

Caleffi Hydronic Solutions logo in green text on white background.

Caleffi 6686F5S1A TwistFlow Radiant Manifold Assembly 6 loop 1"

SKU #: CALE6686F5S1A   |   MPN #: 6686F5S1A
$795.03
$795.03 $0.00
MSRP: $999

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

Brass radiant manifold assembly with five loops, isolation valves, flow meters, and threaded connections on upper and lower r

Caleffi 6687E5S1A TwistFlow Radiant Manifold Assembly 5 loop 1 1/4"

SKU #: CALE6687E5S1A   |   MPN #: 6687E5S1A
$748.56
$748.56 $0.00
MSRP: $941

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

Caleffi brass radiant heating manifold assembly with dual loops, gauges, ball valves, and multiple outlet connections.

Caleffi 6686H5S1A IN TwistFlow Radiant Manifold Assembly 8 loop 1" INVERTED

SKU #: CALE6686H5S1AIN   |   MPN #: 6686H5S1A IN
$951.31
$951.31 $0.00
MSRP: $1,203

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

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

Caleffi 6686H5S1A TwistFlow Radiant Manifold Assembly 8 loop 1"

SKU #: CALE6686H5S1A   |   MPN #: 6686H5S1A
$951.31
$951.31 $0.00
MSRP: $1,203

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

Caleffi brass radiant manifold assembly with dual loops, isolation valves, pressure gauges, and chrome loop connectors.

Caleffi 6686F5S1A IN TwistFlow Radiant Manifold Assembly 6 loop 1" INVERTED

SKU #: CALE6686F5S1AIN   |   MPN #: 6686F5S1A IN
$795.03
$795.03 $0.00
MSRP: $999

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

Caleffi Hydronic Solutions logo in green text on white background.

Caleffi 6687D5S1A TwistFlow Radiant Manifold Assembly 4 loop 1 1/4"

SKU #: CALE6687D5S1A   |   MPN #: 6687D5S1A
$670.50
$670.50 $0.00
MSRP: $840

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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