Caleffi

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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!
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  • Price: High to Low
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Model Number NA15030 is a Hot Seller
Caleffi Molded Cable for connecting Grundfos VFS & RPS to WMZ-G1 Terminal Block, 10'
Model NA15030 is a Closeout
Closeout
$10.80
Was 
$15.80
SAVE $5.00
Only 2 In-Stock
Model Number 200000 is the Number 1 Seller
Caleffi Thermostatic Control Head with Built-in Sensor, 45-82 F Temperature Range, used with radiator valves
16% Buy This
$33.49
In-Stock
Model Number 940451 is the Number 2 Seller

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

11% Buy This
$10.49
In-Stock
Model Number 680505A is the Number 3 Seller
Caleffi 3/4" Nominal Universal PEX Fittings, ASTM Pipe Size
$5.40
In-Stock
Model Number 682540A is the Number 4 Seller
Caleffi Series 682 Universal PEX-AL-PEX Fittings, 1/2" PEX-AL-PEX Connections, 150 psi max
$4.95
Factory-Direct
Model Number NA10313 is the Number 5 Seller

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

7% Buy This
$6.80
In-Stock

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

6% Buy This
$6.75
Factory-Direct
Caleffi Two-pipe Straight Panel Radiators Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe)
4% Buy This
$27.00
Only 2 In-Stock
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
$105.00
Factory-Direct
Caleffi Two-pipe Angled Panel Radiators Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe)
3% Buy This
$26.00
In-Stock
Caleffi Series 681 Universal PEX Fitting, 1/2" Nominal PEX Connection, 150 psi max - QTY:2
$22.20
Factory-Direct
Caleffi Dual Check Continuous Pressure Backflow Preventer with Atmospheric Vent, 1/2" Sweat Inlet/Outlet
$43.15
Factory-Direct
Caleffi 1/2" Nominal Universal PEX Fittings, ASTM Pipe Size
$5.40
In-Stock
Caleffi 1/2" Hard Copper Compression Fittings, 1/2" Compression Connections, 150 psi max
$9.80
Only 1 In-Stock
Caleffi DirtMag Dirt Separator with Magnet, 1" NPT Female Connections, top thread on top
2% Buy This
$122.00
In-Stock
Caleffi One-pipe Straight Panel Radiators Valve, 1/2" Straight (Radiator) x 3/4" Conical (Pipe)
1% Buy This
$43.95
In-Stock
Caleffi Discal Air Separator with 1/2" Check Valve, 1-1/4" NPT Female Connections
$154.40
Only 1 In-Stock
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1/2" Sweat Connections, Low-Lead Brass
$50.95
Factory-Direct
Caleffi Manifolds Flow Meter with Clearview sight-gauge, 1 to 4 LPM
$17.60
Factory-Direct
Caleffi Low Current Draw Thermoelectric Actuator with AUX Micro Switch, 24V, 31.5" Wire Lead, used on Distribution Manifolds
$53.15
Factory-Direct
Caleffi Low Current Draw Thermoelectric Actuator, 24V, 31.5" Wire Lead, used on Distribution Manifolds
$42.45
Factory-Direct
Caleffi DirtMag Dirt Separator with Magnet, 1-1/4" Sweat Connections, top thread on top
1% Buy This
$161.45
Only 1 In-Stock
Caleffi Z-One 2-Way Straight Sweat Valve Body, 1/2" Connections, 50 PSI, 2.5 Cv
$21.35
Only 4 In-Stock
Caleffi Discal Air Separator with 1/2" FNPT Bottom Thread, 1-1/4" Sweat Connections
$143.65
Only 3 In-Stock