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544 Products

Learn More About Caleffi 521342A
Caleffi Scald Protection 3-Way Thermostatic Mixing Valve, Low-Lead Brass 1/2" NPT Connections, 2 Cv
$118.00
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Learn More About Caleffi 521352A
Caleffi Scald Protection 3-Way Thermostatic Mixing Valve, Low-Lead Brass 3/4" NPT Connections, 2 Cv
$117.00
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Learn More About Caleffi 521362A
Caleffi Scald Protection 3-Way Thermostatic Mixing Valve, Low-Lead Brass 1" NPT Connections, 2 Cv
$184.00
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Learn More About Caleffi 132432A
Caleffi QuickSetter Balancing Valve with Flow Meter, 1/2" NPT, 0.5-1.75 GPM
$159.00
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Learn More About Caleffi 132552A
Caleffi QuickSetter Balancing Valve with Flow Meter, 3/4" NPT, 2 - 7 GPM
$172.00
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Learn More About Caleffi 132662A
Caleffi QuickSetter Balancing Valve with Flow Meter, 1" NPT, 3 - 10 GPM
$201.00
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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.
Learn More About Caleffi 132772A
Caleffi QuickSetter Balancing Valve with Flow Meter, 1-1/4" NPT, 5 - 19 GPM
$267.00
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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.
Learn More About Caleffi 132882A
Caleffi QuickSetter Balancing Valve with Flow Meter, 1-1/2" NPT, 8 - 32 GPM
$315.00
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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.
Learn More About Caleffi 132992A
Caleffi QuickSetter Balancing Valve with Flow Meter, 2" NPT, 12 - 50 GPM
$386.00
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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.
Learn More About Tekmar 680
tekmar - 680 - Snow Melting Control - Outdoor Temperature Reset - Speed Injection Mixing
$2,828.00
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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.
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.
Learn More About Tekmar 742
tekmar - 742 - Actuating Motor - 10 Newton Meter of Torque Rotary Motion - For tekmar Brass Mixing Valves
$472.00
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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.
Learn More About Caleffi 280975A
Caleffi ThermoMix High-Flow Boiler Protection Thermostatic Mixing Valve, Cartridge Sensor, 1-1/4" Sweat Connections, 135 F Max, 14 Cv
$284.00
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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.
Learn More About Watts Radiant 204237
Watts Radiant
Watts Radiant - 204237 - 3/8" Onix Crimp 16-Branch CustomCut Manifold - 4' Length - Order Number: 81001937
$303.00
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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.
Learn More About Watts Radiant 204237BV
Watts Radiant
Watts Radiant - 204237BV - 3/8" Onix Crimp 16-Branch CustomCut Manifold - 4' Length - w/ Mini Ball Valves - Order Number: 81001940
$972.00
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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.
Learn More About Watts Radiant RLCM05-M16-08X16
Watts Radiant
Watts Radiant - RLCM05-M16-08X16 - 1/2" PEX-AL-PEX Compression 16-Branch CustomCut Manifold - 4' Length - Order Number: 81010694
$403.50
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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.
Learn More About Watts Radiant RLCM05-M16BV-08X16
Watts Radiant
Watts Radiant - RLCM05-M16BV-08X16 - 1/2" PEX-AL-PEX Compression 16-Branch CustomCut Manifold - 4' Length - w/ Mini Ball Valves - Order Number: 81010692
$1,180.00
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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
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.
Learn More About Watts Radiant 205412
Watts Radiant
Watts Radiant - 205412 - 3/4" Male Sweat 12-Branch CustomCut Manifold - 4' Length - Order Number: 81001951
$398.50
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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 Tekmar 009K
tekmar - 009K - Transformer Kit - 24V (AC) - Includes Mounting Box
$106.00
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Learn More About Tekmar 086
tekmar - 086 - Humidity and Temperature Sensor - Flush Mount
$148.00
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Learn More About Tekmar 095
tekmar - Classic Series - 095 - Snow Sensor - Aerial Mount - For Use with tekmar Snow Melting Controls
$209.00
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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.
Learn More About Tekmar 406
tekmar - Performance Series - 406 - House Control - Compatible with tekmarNet 2 - Four Zone Valves - Outdoor Temperature Reset - Heat Pump - Backup
$1,420.00
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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
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.
Learn More About Tekmar 519
tekmar - Classic Series - 519 - Radiant Thermostat - Non-Programmable - One Stage Heat - Slab Sensor
$115.00
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Learn More About Tekmar 553
tekmar - Designer Series - 553 - Thermostat - 7-Day Programmable - Compatible with tekmarNet 2 and tekmarNet 4 - Two Stage Heat, One Stage Cool, One Fan - Touchscreen
$380.00
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.

Maximize your boilers efficiency with proper zone controls. A properly zoned building will provide radiant comfort while keeping energy bills down. Check out our wide selection or contact our experts for all your zoning needs.