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Caleffi

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493 Products

Learn More About Caleffi 59905A
Caleffi Tail Piece with Check Valve, 3/4" Sweat Connection with 1" Nut, Low-Lead Brass
$21.00
Factory-Direct
Learn More About Caleffi 680504A
Caleffi 1/2" Nominal Universal PEX Fittings, ASTM Pipe Size
$8.00
In-Stock
Learn More About Caleffi NA29284
Caleffi Automatic Air Vent Shut-off only, 1/2" FNPT x 1/2" NPT Male Connection, 150 PSI Max
$40.00
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
$79.00
More On The Way
Est. Ship Date Apr 22
Learn More About Caleffi F29635
Caleffi 140 F Replacement Thermostatic Sensor Cartridge, used with 280 Series Protection Valves
$25.00
Factory-Direct
Learn More About Caleffi 546366AM
$234.00
In-Stock
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 338452
Caleffi Angled Radiator Valve Body, 1/2" Straight (Radiator) x 3/4" Conical (Pipe), 3.1 Cv
$48.00
In-Stock
Learn More About Caleffi 573009A
Caleffi AutoFIll Combo Automatic Boiler Fill Valve with Backflow Preventer, Pressure Indicator, 1/2" Sweat Inlet x 1/2" FNPT Outlet
$163.00
Factory-Direct
Learn More About Caleffi 546096A
Caleffi Air & Dirt Separator, 1" Sweat Union Connections
$338.00
Factory-Direct
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 120141A
Caleffi FlowCal Y-Strainer with Integral Ball Valve, 1/2" NPT Connections
$98.00
Factory-Direct
Learn More About Caleffi 127349AF3G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1/2" Sweat Connections, Low-Lead Brass
$82.00
Factory-Direct
Learn More About Caleffi 553542A
Caleffi AutoFill Automatic Boiler Fill Valve, Pressure Indicator, 1/2" MNPT Inlet x 1/2" FNPT Outlet
$102.00
Factory-Direct
Learn More About Caleffi 551007AC
Caleffi Discal Air Separator with 1/2" Check Valve, 1-1/4" NPT Female Connections
$278.00
In-Stock
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 280175A
Caleffi ThermoMix High-Flow Boiler Protection Thermostatic Mixing Valve, Cartridge Sensor, 1-1/4" NPT Connections, 130 F Max, 14 Cv
$297.00
Factory-Direct
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 681503A
Caleffi - Series 681 - Universal PEX Fitting - 3/8" Nominal PEX Connection - 150 PSI Maximum Pressure
$9.00
Factory-Direct
Learn More About Caleffi NA10273
Caleffi AutoFill 5350 Series Valves Pressure Gauge, 2" Dual Size, 0-100 PSI, 1/8" NPT Connection
$12.00
In-Stock
Learn More About Caleffi 546328AM
$204.00
Factory-Direct
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 203502
Caleffi Thermostatic Control Head with Remote Sensor Probe, 68-122 F Temperature Range, used with radiator valves
$154.00
Factory-Direct
Learn More About Caleffi 342452
Caleffi Angled Isolation & Balancing Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe), 4.6 Cv
$29.00
In-Stock
Learn More About Caleffi 343452
Caleffi Straight Isolation & Balancing Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe), 2.5 Cv
$33.00
In-Stock
Learn More About Caleffi 472000
Caleffi Thermostatic Control Head with Remote Wall Sensor, 43-82 F Temperature Range, used with radiator valves
$155.00
In-Stock
Learn More About Caleffi 220500A
Caleffi Angled Radiator Valve Body, 3/4" NPT Connections, 40-212 F, 3.7 Cv
$49.00
In-Stock
Learn More About Caleffi Z300532
Caleffi Z-One 3-Way Diverting Sweat Valve Body, 3/4" Connections, 50 PSI, 2.5 Cv
$58.00
In-Stock
Learn More About Caleffi NA553379
Caleffi Boiler Trim Kit, 1-1/4" Sweat Connections w/BackFlow Preventer & 4.4 gal Expansion Tank
$529.00
In-Stock
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.

One of the biggest names in hydronics, Caleffi has all the parts to optimize your boiler's performance. We carry a full line of Caleffi heating products, so start shopping below or call us for expert advice!