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Learn More About Caleffi 940451
Caleffi Series 940 - Radiator Adapter - 1/2" x 3/4" Connections - QTY: 2
Model: 940451

Caleffi - Series 940 - Radiator Adapter - 1/2" M Straight x 3/4" M Conical Connection, Package of 2

26% Buy This
(4)
$12.83
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Learn More About Caleffi 200000
Caleffi Thermostatic Control Head with Built-in Sensor, 45-82 F Temperature Range, used with radiator valves
Model: 200000
Caleffi Thermostatic Control Head with Built-in Sensor, 45-82 F Temperature Range, used with radiator valves
13% Buy This
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$40.54
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Learn More About Caleffi NA10262
Caleffi 1/2" Sweat Connection Fitting, chrome plated nut
Model: NA10262

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

9% Buy This
(1)
$7.65
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Learn More About Caleffi 682540A
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
9% Buy This
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$7.00
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Learn More About Caleffi 301241
Caleffi One-pipe Straight Panel Radiators Valve - With Adjustable Bypass - 1/2" BSP Straight (Radiator) x 3/4" BSP Conical (Pipe)
Model: 301241
Caleffi One-pipe Straight Panel Radiators Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe)
7% Buy This
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$58.70
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Learn More About Caleffi 681524-2
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:2
6% Buy This
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$22.20
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Learn More About Caleffi NA10313
Caleffi Series NA103 - Connection Fitting - 1/2" NPT Male Connection - 3/4" BSP
Model: NA10313

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

5% Buy This
(1)
$8.17
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Learn More About Caleffi 301040
Caleffi Two-pipe Straight Panel Radiators Valve - 1/2" BSP Straight (Radiator) x 3/4" BSP Conical (Pipe)
Model: 301040
Caleffi Two-pipe Straight Panel Radiators Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe)
4% Buy This
(2)
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$33.54
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Learn More About Caleffi 573002A
Caleffi Auto Fill Combo Automatic Boiler Fill Valve with Backflow Preventer, 1/2" FNPT Inlet x 1/2" FNPT Outlet
Model: 573002A
Caleffi AutoFIll Combo Automatic Boiler Fill Valve with Backflow Preventer, Pressure Indicator, 1/2" FNPT Inlet x 1/2" NPT Female Outlet
4% Buy This
(3)
$146.41
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Learn More About Caleffi 680505A
Caleffi 3/4" Nominal Universal PEX Fittings, ASTM Pipe Size
Model: 680505A
Caleffi 3/4" Nominal Universal PEX Fittings, ASTM Pipe Size
4% Buy This
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$6.86
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Learn More About Caleffi 127349AFG75
Caleffi FlowCal Compact Automatic Flow Balancing Valve 1/2" Sweat Connections, Low-Lead Brass
Model: 127349AFG75
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1/2" Sweat Connections, Low-Lead Brass
3% Buy This
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$79.41
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Learn More About Caleffi 301140
Caleffi Two-pipe Angled Panel Radiators Valve, 1/2" BSP Straight (Radiator) x 3/4" BSP Conical (Pipe)
Model: 301140
Caleffi Two-pipe Angled Panel Radiators Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe)
2% Buy This
(1)
$33.54
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Learn More About Caleffi 437516-2
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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$9.80
Only 4 In-Stock
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Learn More About Caleffi 301341
Caleffi One-pipe Angled Panel Radiators Valve, 1/2" BSP Straight (Radiator) x 3/4" BSP Conical (Pipe) - With Bypass
Model: 301341
Caleffi One-pipe Angled Panel Radiators Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe)
1% Buy This
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$63.97
Only 4 In-Stock
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Learn More About Caleffi 551007A
Caleffi Discal Air Separator with 1/2" FNPT Bottom Thread, 1-1/4" NPT Female Connections
Model: 551007A
Caleffi Discal Air Separator with 1/2" FNPT Bottom Thread, 1-1/4" NPT Female Connections
1% Buy This
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$221.13
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.
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Learn More About Caleffi 551006A
Caleffi Discal Air Separator with 1/2" FNPT Bottom Thread, 1" NPT Female Connections
Model: 551006A
Caleffi Discal Air Separator with 1/2" FNPT Bottom Thread, 1" NPT Female Connections
1% Buy This
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$151.41
Only 1 In-Stock
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Learn More About Caleffi 551007AC
Caleffi Discal Air Separator with 1/2" Check Valve, 1-1/4" NPT Female Connections
Model: 551007AC
Caleffi Discal Air Separator with 1/2" Check Valve, 1-1/4" NPT Female Connections
1% Buy This
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$225.35
Only 3 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.
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Learn More About Caleffi 573409A
Caleffi Dual Check Continuous Pressure Backflow Preventer with Atmospheric Vent, 1/2" Sweat Inlet/Outlet
Model: 573409A
Caleffi Dual Check Continuous Pressure Backflow Preventer with Atmospheric Vent, 1/2" Sweat Inlet/Outlet
1% Buy This
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$68.16
Only 1 In-Stock
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Learn More About Caleffi 551005A
Caleffi Discal Air Separator with 1/2" FNPT Bottom Thread, 3/4" NPT Female Connections
Model: 551005A
Caleffi Discal Air Separator with 1/2" FNPT Bottom Thread, 3/4" NPT Female Connections
1% Buy This
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$140.14
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Learn More About Caleffi NA553369
Caleffi Boiler Trim Kit, 1" Sweat Connections w/BackFlow Preventer & 4.4 gal Expansion Tank
Model: NA553369
Caleffi Boiler Trim Kit, 1" Sweat Connections w/BackFlow Preventer & 4.4 gal Expansion Tank
1% Buy This
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$425.00
Factory-Direct
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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.
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Learn More About Caleffi NA546050T
Caleffi Air & Dirt Separator, 2" Threaded Connections, ASME & CRN Certified
Model: NA546050T
Caleffi Air & Dirt Separator, 2" Threaded Connections, ASME & CRN Certified
1% Buy This
(1)
$2,705.60
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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.
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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.
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Learn More About Caleffi 120151A
Caleffi FlowCal Y-Strainer with Integral Ball Valve, 3/4" NPT Connections
Model: 120151A
Caleffi FlowCal Y-Strainer with Integral Ball Valve, 3/4" NPT Connections
1% Buy This
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$95.59
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Learn More About Caleffi 120171A
Caleffi FlowCal Y-Strainer with Integral Ball Valve, 1-1/4" NPT Connections
Model: 120171A
Caleffi FlowCal Y-Strainer with Integral Ball Valve, 1-1/4" NPT Connections
1% Buy This
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$216.18
Factory-Direct
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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.
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Learn More About Caleffi 551008A
Caleffi Discal Air Separator with 1/2" FNPT Bottom Thread, 1-1/2" NPT Female Connections
Model: 551008A
Caleffi Discal Air Separator with 1/2" FNPT Bottom Thread, 1-1/2" NPT Female Connections
1% Buy This
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$287.32
Factory-Direct
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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.
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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!