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.
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Learn More About Caleffi NA10262

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

24% Buy This
$7.65
Only 2 In-Stock
Learn More About Caleffi NA10313

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

14% Buy This
$8.17
Only 4 In-Stock
Learn More About Caleffi 682540A
Caleffi Series 682 Universal PEX-AL-PEX Fittings, 1/2" PEX-AL-PEX Connections, 150 psi max
13% Buy This
$7.00
In-Stock
Learn More About Caleffi 127341AFG50
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1/2" NPT Male Connections, Low-Lead Brass
5% Buy This
$78.75
Factory-Direct
Learn More About Caleffi Z300532
Caleffi Z-One 3-Way Diverting Sweat Valve Body, 3/4" Connections, 50 PSI, 2.5 Cv
5% Buy This
$53.52
In-Stock
Learn More About Caleffi 680504A
Caleffi 1/2" Nominal Universal PEX Fittings, ASTM Pipe Size
4% Buy This
$6.86
In-Stock
Learn More About Caleffi 437516-2
Caleffi 1/2" Hard Copper Compression Fittings, 1/2" Compression Connections, 150 psi max
3% Buy This
$9.80
Only 2 In-Stock
Learn More About Caleffi 337221A
Caleffi Manual Air Vent with Metal Seal & Adjustable Outlet, 1/4" NPT Connections
1% Buy This
$6.74
Factory-Direct
Learn More About Caleffi 676259A
Caleffi 2-Way Thermo-electric Zone Valve, 3/4" Sweat TwisTop Connections, 24V with AUX Switch, NC
1% Buy This
$133.43
Only 3 In-Stock
Learn More About Caleffi 31901A
Caleffi Tail Piece without Check Valve, 3/4" NPT Male Connection, used with 1" Nut, Low-Lead Brass
1% Buy This
$10.21
Factory-Direct
Learn More About Caleffi Z55
Caleffi Z-One Z55 2-Way Valve and Actuator Set with Terminal Block & AUX Switch, 3/4" Sweat, Normally Closed, 7.5 Cv, 20 PSI
1% Buy This
$124.96
Factory-Direct
Learn More About Caleffi R50008
Caleffi 1-1/4" Union Washer for model 548007A & 548097A
1% Buy This
$4.88
Factory-Direct
Learn More About Caleffi 127341AF4G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1/2" NPT Male Connections, Low-Lead Brass
1% Buy This
$78.75
Factory-Direct
Learn More About Caleffi Z200513
Caleffi Z-One 2-Way Straight NPT Valve Body, 3/4" Connections, 30 PSI, 3.5 Cv
1% Buy This
$47.32
Only 1 In-Stock
Learn More About Caleffi 681503A
Caleffi - Series 681 - Universal PEX Fitting - 3/8" Nominal PEX Connection - 150 PSI Maximum Pressure
1% Buy This
$7.15
Factory-Direct
Learn More About Caleffi R59681
Caleffi Hygroscopic Safety Cap for Discal 551 Air Separators and DiscalDirt 546 Dirt Separators
1% Buy This
$12.43
Factory-Direct
Learn More About Caleffi F29635
Caleffi 140 F Replacement Thermostatic Sensor Cartridge, used with 280 Series Protection Valves
1% Buy This
$21.72
Factory-Direct
Learn More About Caleffi R56214
Caleffi Replacement Air Vent Cap for model 502043 CST Manifold Air Vent, designed for Pressure Testing
1% Buy This
$1.39
Factory-Direct
Learn More About Caleffi 6686C5S1A
Caleffi TwistFlow Pre-assembled Manifold Assembly, 1" Inlet Ball Valves, 3 outlets with Flow Gauge
1% Buy This
$396.67
Only 1 In-Stock
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*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.
Learn More About Caleffi 6686D5S1A
Caleffi TwistFlow Pre-assembled Manifold Assembly, 1" Inlet Ball Valves, 4 outlets with Flow Gauge
1% Buy This
$453.54
Factory-Direct
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Learn More About Free Freight
Free Shipping
*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.
Learn More About Caleffi 6687F5S1A
Caleffi TwistFlow Pre-assembled Manifold Assembly, 1-1/4" Inlet Ball Valves, 6 outlets with Flow Gauge
1% Buy This
$592.08
Factory-Direct
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Free Shipping
Learn More About Free Freight
Free Shipping
*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.
Learn More About Caleffi 449000
Caleffi Replacement White Knob, used with 663 & 668S1 series manifolds
1% Buy This
$6.86
Factory-Direct
Learn More About Caleffi 659084
Caleffi Manifold Cabinet for up to 10 Outlets Assembly, 32" W x 20" H
1% Buy This
$294.87
Factory-Direct
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Free Shipping
Learn More About Free Freight
Free Shipping
*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.
Learn More About Caleffi Z111000
Caleffi Z-One 24V Normally Closed Valve Actuator with AUX Switch, 18" Wire
1% Buy This
$78.75
Factory-Direct