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

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

SKU #: CALE6686H5S1AIN   |   MPN #: 6686H5S1A IN

Regular price $924.48
Sale price $924.48 Regular price $0.00
MSRP: $1,239

Special Order

Caleffi 6686H5S1A TwistFlow Radiant Manifold Assembly 8 loop 1"

Caleffi 6686H5S1A TwistFlow Radiant Manifold Assembly 8 loop 1"

SKU #: CALE6686H5S1A   |   MPN #: 6686H5S1A

Regular price $924.48
Sale price $924.48 Regular price $0.00
MSRP: $1,239

Special Order

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

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

SKU #: CALE6686F5S1AIN   |   MPN #: 6686F5S1A IN

Regular price $774.84
Sale price $774.84 Regular price $0.00
MSRP: $1,029

Special Order

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

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

SKU #: CALE6687D5S1A   |   MPN #: 6687D5S1A

Regular price $655.45
Sale price $655.45 Regular price $0.00
MSRP: $865

Special Order

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

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

SKU #: CALE6687C5S1A   |   MPN #: 6687C5S1A

Regular price $579.78
Sale price $579.78 Regular price $0.00
MSRP: $759

Special Order

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

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

SKU #: CALE6687E5S1AIN   |   MPN #: 6687E5S1A IN

Regular price $730.20
Sale price $730.20 Regular price $0.00
MSRP: $969

Special Order

Caleffi 6687F5S1A TwistFlow Radiant Manifold Assembly 6 loop 1 1/4"

Caleffi 6687F5S1A TwistFlow Radiant Manifold Assembly 6 loop 1 1/4"

SKU #: CALE6687F5S1A   |   MPN #: 6687F5S1A

Regular price $805.15
Sale price $805.15 Regular price $0.00
MSRP: $1,072

Special Order

Caleffi 6687F5S1A IN TwistFlow Radiant Manifold Assembly 6 loop 1 1/4" INVERTED

Caleffi 6687F5S1A IN TwistFlow Radiant Manifold Assembly 6 loop 1 1/4" INVERTED

SKU #: CALE6687F5S1AIN   |   MPN #: 6687F5S1A IN

Regular price $805.15
Sale price $805.15 Regular price $0.00
MSRP: $1,072

Special Order

Caleffi 6687G5S1A IN TwistFlow Radiant Manifold Assembly 7 loop 1 1/4" INVERTED

Caleffi 6687G5S1A IN TwistFlow Radiant Manifold Assembly 7 loop 1 1/4" INVERTED

SKU #: CALE6687G5S1AIN   |   MPN #: 6687G5S1A IN

Regular price $880.94
Sale price $880.94 Regular price $0.00
MSRP: $1,175

Special Order

Caleffi 6687G5S1A TwistFlow Radiant Manifold Assembly 7 loop 1 1/4"

Caleffi 6687G5S1A TwistFlow Radiant Manifold Assembly 7 loop 1 1/4"

SKU #: CALE6687G5S1A   |   MPN #: 6687G5S1A

Regular price $880.94
Sale price $880.94 Regular price $0.00
MSRP: $1,175

Special Order

Caleffi 6687H5S1A TwistFlow Radiant Manifold Assembly 8 loop 1 1/4"

Caleffi 6687H5S1A TwistFlow Radiant Manifold Assembly 8 loop 1 1/4"

SKU #: CALE6687H5S1A   |   MPN #: 6687H5S1A

Regular price $954.34
Sale price $954.34 Regular price $0.00
MSRP: $1,281

Special Order

Caleffi 6687H5S1A IN TwistFlow Radiant Manifold Assembly 8 loop 1 1/4" INVERTED

Caleffi 6687H5S1A IN TwistFlow Radiant Manifold Assembly 8 loop 1 1/4" INVERTED

SKU #: CALE6687H5S1AIN   |   MPN #: 6687H5S1A IN

Regular price $954.34
Sale price $954.34 Regular price $0.00
MSRP: $1,281

Special Order

Caleffi 659064 MANIFOLD HOUSING BOX:UP TO 6 OUTLET ASSY

Caleffi 659064 MANIFOLD HOUSING BOX:UP TO 6 OUTLET ASSY

SKU #: CALE659064   |   MPN #: 659064

Regular price $370.01
Sale price $370.01 Regular price $0.00
MSRP: $453

Special Order

Caleffi 659044 Manifold Housing Box:up to 3 outlet assy

Caleffi 659044 Manifold Housing Box:up to 3 outlet assy

SKU #: CALE659044   |   MPN #: 659044

Regular price $337.99
Sale price $337.99 Regular price $0.00
MSRP: $415

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Caleffi 659084 Manifold Housing Box:Upto 10 Outlet Assy

Caleffi 659084 Manifold Housing Box:Upto 10 Outlet Assy

SKU #: CALE659084   |   MPN #: 659084

Regular price $432.25
Sale price $432.25 Regular price $0.00
MSRP: $535

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Caleffi 659104 Manifold Housing Box:up to13 outlet assy

Caleffi 659104 Manifold Housing Box:up to13 outlet assy

SKU #: CALE659104   |   MPN #: 659104

Regular price $494.11
Sale price $494.11 Regular price $0.00
MSRP: $613

Special Order

Caleffi 659124 Manifold Housing Box:up to17 outlet assy

Caleffi 659124 Manifold Housing Box:up to17 outlet assy

SKU #: CALE659124   |   MPN #: 659124

Regular price $555.36
Sale price $555.36 Regular price $0.00
MSRP: $694

Special Order

Caleffi 6686C5S1A IN TwistFlow Radiant Manifold Assembly 3 loop 1" INVERTED

Caleffi 6686C5S1A IN TwistFlow Radiant Manifold Assembly 3 loop 1" INVERTED

SKU #: CALE6686C5S1AIN   |   MPN #: 6686C5S1A IN

Regular price $550.85
Sale price $550.85 Regular price $0.00
MSRP: $718

Special Order

Caleffi 6686E5S1A TwistFlow Radiant Manifold Assembly 5 loop 1"

Caleffi 6686E5S1A TwistFlow Radiant Manifold Assembly 5 loop 1"

SKU #: CALE6686E5S1A   |   MPN #: 6686E5S1A

Regular price $698.49
Sale price $698.49 Regular price $0.00
MSRP: $924

Special Order

Caleffi 6686C5S1A TwistFlow Radiant Manifold Assembly 3 loop 1"

SKU #: CALE6686C5S1A   |   MPN #: 6686C5S1A

Regular price $550.85
Sale price $550.85 Regular price $0.00
MSRP: $718

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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