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 NA10104
$2.58
Factory-Direct
Learn More About Caleffi NA12173
Caleffi 1" NPT x 1" NPT Connections Double Nipple Fitting
$18.45
Factory-Direct
Learn More About Caleffi NA503040
Caleffi Boilers Temperature Gauge/Dual Pressure Tridicator, 1/4" NPT Connections
$25.66
Factory-Direct
Learn More About Caleffi NA61241
Caleffi Inverted Flare Retrofit Extension Kit
$5.91
Factory-Direct
Learn More About Caleffi R11059
$3.14
Factory-Direct
Learn More About Caleffi R31981
Caleffi Tail Piece without Check Valve, 1/2" NPT Male Connection, used with 1" Nut, Low-Lead Brass
$7.88
Factory-Direct
Learn More About Caleffi Z307433
Caleffi Z-One 3-Way Diverting Sweat Low-Lead Brass Valve Body, 1/2" Connections, 30 PSI, 3.5 Cv
$55.85
Factory-Direct
Learn More About Caleffi Z307537
Caleffi Z-One 3-Way Diverting Sweat Low-Lead Brass Valve Body, 3/4" Connections, 20 PSI, 7.5 Cv
$66.21
Factory-Direct
Learn More About Caleffi F29634
Caleffi 130 F Replacement Thermostatic Sensor Cartridge, used with 280 Series Protection Valves
$21.72
Factory-Direct
Learn More About Caleffi F29636
Caleffi 160 F Replacement Thermostatic Sensor Cartridge, used with 280 Series Protection Valves
$21.72
Factory-Direct
Learn More About Caleffi F59650
Caleffi AutoFill Boiler Valves Replacement Cartridge
$23.92
Factory-Direct
Learn More About Caleffi R56142
Caleffi Replacement Air Vent Cap for 5026 & 5027 Series
$1.32
Factory-Direct
Learn More About Caleffi F39807
Caleffi Replacement Cap & Float Assembly for Discal Brass 551 Series Separators
$39.10
Factory-Direct
Learn More About Caleffi 688003A
Caleffi Replacement Manifold Temperature Gauge, 2" Diameter, 210 F Max
$27.27
Factory-Direct
Learn More About Caleffi 644004
Caleffi Replacement Motorized Actuator, 3-wire control, 24V, used for 6442 & 6443 Series Valves
$131.62
Factory-Direct
Learn More About Caleffi NA10119
Caleffi 1" Sweat Adapter x 1-1/4" Union Thread Connection Sweat Adapter Fitting
$20.35
Factory-Direct
Learn More About Caleffi NA10197
Caleffi AutoFill Pressure Setting Indicator Disc Cover, Clear Plastic
$1.20
Factory-Direct
Learn More About Caleffi NA12162
Caleffi 3/4" Male with O-ring x 1" Male Thread Connection Nipple Fitting
$17.06
Factory-Direct
Learn More About Caleffi R31706
Caleffi 1" Male x 1-1/4" Male Nipple Connection Nipple Fitting
$18.45
Factory-Direct
Learn More About Caleffi R50048
Caleffi 2" Union Washer for model 548009A & 548099A
$11.89
Factory-Direct
Learn More About Caleffi 680505A
Caleffi 3/4" Nominal Universal PEX Fittings, ASTM Pipe Size
$6.86
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Est. Ship Date Feb 21
Learn More About Caleffi 681524-2
Caleffi Series 681 Universal PEX Fitting, 1/2" Nominal PEX Connection, 150 psi max - QTY:2
$22.20
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Est. Ship Date Feb 21
Learn More About Caleffi NA548082A
Caleffi Series 548 Hydronic Separator, 3" Flanged Connections, ASME & CRN Certified
$4,895.81
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Est. Ship Date Feb 24
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Free Shipping & Lift Gate
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Free Shipping & Lift Gate
*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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2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.