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110 Products

$6.35
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Caleffi - Series 940 - Radiator Adapter - 1/2" M Straight x 3/4" M Conical Connection, Package of 2

23% Buy This
$40.00
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Caleffi 1/2" Sweat Connection Fitting, chrome plated nut

15% Buy This
$8.00
In-Stock
Caleffi Series 682 Universal PEX-AL-PEX Fittings, 1/2" PEX-AL-PEX Connections, 150 psi max
11% Buy This
$8.00
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Caleffi Thermostatic Control Head with Built-in Sensor, 45-82 F Temperature Range, used with radiator valves
11% Buy This
$60.00
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Caleffi - Series NA103 - Connection Fitting - 1/2" NPT Male Connection - 150 PSI Maximum Pressure

7% Buy This
$9.00
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Learn More About Caleffi 437516
Caleffi 1/2" Hard Copper Compression Fittings, 1/2" Compression Connections, 150 psi max
5% Buy This
$11.00
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Learn More About Caleffi 301241
Caleffi One-pipe Straight Panel Radiators Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe)
4% Buy This
$61.00
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Learn More About Caleffi 301040
Caleffi Two-pipe Straight Panel Radiators Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe)
4% Buy This
$35.00
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Learn More About Caleffi 680505A
Caleffi 3/4" Nominal Universal PEX Fittings, ASTM Pipe Size
4% Buy This
$8.00
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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
3% Buy This
$66.00
Factory-Direct
Learn More About Caleffi 301140
Caleffi Two-pipe Angled Panel Radiators Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe)
2% Buy This
$35.00
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Learn More About Caleffi 573002A
Caleffi AutoFIll Combo Automatic Boiler Fill Valve with Backflow Preventer, Pressure Indicator, 1/2" FNPT Inlet x 1/2" NPT Female Outlet
2% Buy This
$159.00
In-Stock
Learn More About Caleffi 301341
Caleffi One-pipe Angled Panel Radiators Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe)
2% Buy This
$66.00
Factory-Direct
Learn More About Caleffi 127349AF6G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1/2" Sweat Connections, Low-Lead Brass
1% Buy This
$82.00
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Learn More About Caleffi 127351AF1G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 3/4" NPT Male Connections, Low-Lead Brass
1% Buy This
$84.00
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Learn More About Caleffi 626009
Caleffi Replacement Stainless Steel Paddle Assembly
1% Buy This
$15.37
Was $19.00
SAVE $3.63
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Learn More About Caleffi 127341AFG50
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1/2" NPT Male Connections, Low-Lead Brass
1% Buy This
$81.00
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Learn More About Caleffi 551006A
Caleffi Discal Air Separator with 1/2" FNPT Bottom Thread, 1" NPT Female Connections
1% Buy This
$187.00
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Learn More About Caleffi 551050A
Caleffi Discal Air Separator, 2" Flange Connections
1% Buy This
$2,225.00
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Free Shipping
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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.
2% Check Discount
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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.
Learn More About Caleffi 59905A
Caleffi Tail Piece with Check Valve, 3/4" Sweat Connection with 1" Nut, Low-Lead Brass
1% Buy This
$21.00
Factory-Direct
Learn More About Caleffi 551007AC
Caleffi Discal Air Separator with 1/2" Check Valve, 1-1/4" NPT Female Connections
1% Buy This
$278.00
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 NA29284
Caleffi Automatic Air Vent Shut-off only, 1/2" FNPT x 1/2" NPT Male Connection, 150 PSI Max
1% Buy This
$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
1% Buy This
$79.00
Factory-Direct

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!