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Caleffi Zoning & Circulation

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Caleffi, one of the leaders in hydronics, makes a wide variety of zoning and circulation materials. Browse below to find the right Caleffi zoning and circulation materials for you or call our experts for personalized advice.
Zoning Materials
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Model Number NA10313 is the Number 1 Seller
Learn More About NA10313
Caleffi Series NA103 - Connection Fitting - 1/2" NPT Male Connection
Model: NA10313

Caleffi - Series NA103 - Connection Fitting - 1/2" NPT Male Connection - 150 PSI Maximum Pressure

24% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$6.20
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Model Number 681524 is the Number 2 Seller
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Caleffi Series 681 Universal PEX Fitting, 1/2" Nominal PEX Connection, 150 psi max - QTY:2
Model: 681524
Caleffi Series 681 Universal PEX Fitting, 1/2" Nominal PEX Connection, 150 psi max - QTY:1
23% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$11.10
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Model Number 680505A is the Number 3 Seller
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Caleffi 3/4" Nominal Universal PEX Fittings, ASTM Pipe Size
Model: 680505A
Caleffi 3/4" Nominal Universal PEX Fittings, ASTM Pipe Size
15% Buy This
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$4.90
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$9.90
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Model Number NA10262 is the Number 4 Seller
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Caleffi 1/2" Sweat Connection Fitting, chrome plated nut
Model: NA10262

Caleffi 1/2" Sweat Connection Fitting, chrome plated nut

14% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$5.85
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Model Number 682540A is the Number 5 Seller
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Caleffi Series 682 Universal PEX-AL-PEX Fittings, 1/2" PEX-AL-PEX Connections, 150 psi max
Model: 682540A
Caleffi Series 682 Universal PEX-AL-PEX Fittings, 1/2" PEX-AL-PEX Connections, 150 psi max
11% Buy This
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$4.95
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Learn More About Z307537
Caleffi Z-One 3-Way Diverting Sweat Low-Lead Brass Valve Body, 3/4" Connections, 20 PSI, 7.5 Cv
Model: Z307537
Caleffi Z-One 3-Way Diverting Sweat Low-Lead Brass Valve Body, 3/4" Connections, 20 PSI, 7.5 Cv
3% Buy This
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$44.60
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Learn More About 437516
Caleffi 1/2" Hard Copper Compression Fittings, 1/2" Compression Connections, 150 psi max QTY: 2
Model: 437516
Caleffi 1/2" Hard Copper Compression Fittings, 1/2" Compression Connections, 150 psi max
2% Buy This
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$9.35
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Learn More About 521519A
Caleffi MixingCal 3-Way Thermostatic Mixing Valve, Low-Lead Brass with Adaptor and Temperature Gauge, 3/4" Sweat Connections
Model: 521519A
Caleffi MixingCal 3-Way Thermostatic Mixing Valve, Low-Lead Brass with Adaptor and Temperature Gauge, 3/4" Sweat Connections
2% Buy This
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$109.45
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Learn More About 644250A
Caleffi 2-Way Straight Motorized Ball Zone Valve, 3/4" NPT Connections, 13 Cv
Model: 644250A
Caleffi 2-Way Straight Motorized Ball Zone Valve, 3/4" NPT Connections, 13 Cv
1% Buy This
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$167.05
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Learn More About NA17256
Caleffi 3-Speed Manifold Pump Station, UPS 15-58 pump, 1" NPT Male & 3/4" NPT Female Connections, built-in hydraulic separator
Model: NA17256
Caleffi 3-Speed Manifold Pump Station, UPS 15-58 pump, Thermostatic Fixed Point Mix Valve, 1" NPT Male & 3/4" NPT Female Connections, built-in hydraulic separator
1% Buy This
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$494.35
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Learn More About Free Freight *This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Learn More About 626600A
Caleffi 1" NPT Male Universal Flow Switch with NEMA 5 Enclosure, Suitable for 1" to 8" Pipe
Model: 626600A
Caleffi 1" NPT Male Universal Flow Switch with NEMA 5 Enclosure, Suitable for 1" to 8" Pipe, used with heating & air conditioning systems
1% Buy This
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$124.95
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Learn More About 535051A
Caleffi AutoFil Automatic Boiler Fill Valve, 3/4" NPT Male Union Connections
Model: 535051A
Caleffi AutoFil Automatic Boiler Fill Valve, 3/4" NPT Male Union Connections
1% Buy This
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$75.15
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Learn More About Z307433
Caleffi Z-One 3-Way Diverting Sweat Low-Lead Brass Valve Body, 1/2" Connections, 30 PSI, 3.5 Cv
Model: Z307433
Caleffi Z-One 3-Way Diverting Sweat Low-Lead Brass Valve Body, 1/2" Connections, 30 PSI, 3.5 Cv
1% Buy This
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$37.75
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Learn More About 6686C5S1A
Caleffi TwistFlow Pre-assembled Manifold Assembly, 1" Inlet Ball Valves, 3 outlets with Flow Gauge
Model: 6686C5S1A
Caleffi TwistFlow Pre-assembled Manifold Assembly, 1" Inlet Ball Valves, 3 outlets with Flow Gauge
1% Buy This
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$314.25
Factory-Direct
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Free Shipping
Learn More About Free Freight *This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Learn More About 519709A
Caleffi Differential Pressure By-pass Valve, 1-1/4" NPT Inlet with 1-1/4" Sweat Outlet
Model: 519709A
Caleffi Differential Pressure By-pass Valve, 1-1/4" NPT Inlet with 1-1/4" Sweat Outlet
1% Buy This
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$128.90
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Learn More About 521619A
Caleffi MixingCal 3-Way Thermostatic Mixing Valve, Low-Lead Brass with Adaptor and Temperature Gauge, 1" Sweat Connections
Model: 521619A
Caleffi MixingCal 3-Way Thermostatic Mixing Valve, Low-Lead Brass with Adaptor and Temperature Gauge, 1" Sweat Connections
1% Buy This
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$127.25
Only 2 In-Stock
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Learn More About R53003
Caleffi 1-1/4" Union Nut for model 548007A & 548097A
Model: R53003
Caleffi 1-1/4" Union Nut for model 548007A & 548097A
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$15.85
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Learn More About 31553 FD
Caleffi 1" FNPT Hydro Separators Tail Piece for model 548006A
Model: 31553 FD
Caleffi 1" FNPT Hydro Separators Tail Piece for model 548006A
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$9.25
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Learn More About 61215A
Caleffi 1" FNPT x 1-1/4" Male Thread Connection Bushing Fitting
Model: 61215A
Caleffi 1" FNPT x 1-1/4" Male Thread Connection Bushing Fitting
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$11.20
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Learn More About NA10087
Caleffi 1" Female x 1-1/4" Male Thread Connection Bushing Fitting
Model: NA10087
Caleffi 1" Female x 1-1/4" Male Thread Connection Bushing Fitting
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$11.30
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Learn More About NA10083
Caleffi 1" Male Threaded Plug Connection Cap
Model: NA10083
Caleffi 1" Male Threaded Plug Connection Cap
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$7.00
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Learn More About R31706
Caleffi 1" Male x 1-1/4" Male Nipple Connection Nipple Fitting
Model: R31706
Caleffi 1" Male x 1-1/4" Male Nipple Connection Nipple Fitting
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$14.00
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Learn More About NA10104
Caleffi 1" Mixing Valves Connection Disk
Model: NA10104
Caleffi 1" Mixing Valves Connection Disk
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$1.85
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Learn More About NA10064
Caleffi 1" NPT /w Male Thread Connection Nipple Fitting
Model: NA10064
Caleffi 1" NPT /w Male Thread Connection Nipple Fitting
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$12.65
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