Mechanical Packages

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Learn More About Caleffi 502710A
Caleffi Automatic Air Vent with Service Check Valve, 1/8" NPT Male
$15.81
Factory-Direct
Learn More About Caleffi 548098A
Caleffi Series 548 Hydronic Separator, 1 1/2" Sweat Union Connections, pre-formed insulation
$634.51
Factory-Direct
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.
Learn More About Caleffi 548099A
Caleffi Series 548 Hydronic Separator, 2" Sweat Union Connections, pre-formed insulation
$741.55
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 501502A
Caleffi Replacement Hi-Capacity Automatic Air Vent, 3/4" NPT Female Connections
$238.24
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 337221A
Caleffi Manual Air Vent with Metal Seal and Adjustable Outlet, 1/4" NPT Connections
$7.72
Factory-Direct
Learn More About Caleffi 502720A
Caleffi Automatic Air Vent with Service Check Valve, 1/4" NPT Male with Service Check Valve
$16.76
Factory-Direct
Learn More About Caleffi 551004A
Caleffi DiscalAir High Discharge Automatic Air Vent, 1/2" NPT Female Connections
$73.53
Factory-Direct
Learn More About Caleffi NA546510A
Caleffi DirtCal Dirt Separator, 4" ANSI Flange Connections, ASME & CRN Certified
$3,916.91
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.
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 Caleffi 551035AC
Caleffi Discal Air Separator with 1/2" Check Valve, 1-1/4" Sweat Connections
$215.49
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 551041A
Caleffi Discal Air Separator with 1/2" FNPT Bottom Thread, 1-1/2" Sweat Connections
$273.24
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 551041AC
Caleffi Discal Air Separator with 1/2" Check Valve, 1-1/2" Sweat Connections
$279.58
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 551005A
Caleffi Discal Air Separator with 1/2" FNPT Bottom Thread, 3/4" NPT Female Connections
$140.14
Factory-Direct
Learn More About Caleffi 551005AC
Caleffi Discal Air Separator with 1/2" Check Valve, 3/4" NPT Femal Connections
$146.48
Factory-Direct
Learn More About Caleffi 551006AC
Caleffi Discal Air Separator with 1/2" Check Valve, 1" NPT Female Connections
$157.04
Factory-Direct
Learn More About Caleffi 551008AC
Caleffi Discal Air Separator with 1/2" Check Valve, 1-1/2" NPT Female Connections
$292.96
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 NA551060A
Caleffi Discal Air Separator, 2-1/2" Flange Connections, ASME & CRN Certified
$2,979.19
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.
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 Caleffi NA551100A
Caleffi Discal Air Separator, 4" Flange Connections, ASME & CRN Certified
$4,412.96
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.
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 Caleffi 573503A
Caleffi Dual Check Continuous Pressure Backflow Preventer with Atmospheric Vent, 3/4" NPT Female Inlet/Outlet
$75.00
Factory-Direct
Learn More About Caleffi NA553369
Caleffi Boiler Trim Kit, 1" Sweat Connections w/BackFlow Preventer & 4.4 gal Expansion Tank
$425.00
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 Crown Boiler Co. 850096
Crown - 850096 - Near Boiler Piping Kit - Fof BSI207 Bermuda Boilers
$1,429.00
Factory-Direct
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*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 Crown Boiler Co. 850097
Crown - 850097 - Near Boiler Piping Kit - For BSI241 and BSI-276 Bermuda Boilers
$1,643.00
Factory-Direct
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*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 Crown Boiler Co. 850098
Crown - 850098 - Near Boiler Piping Kit - For BSI311-BSI-380 Bermuda Boilers
$1,939.00
Factory-Direct
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*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 Weil-McLain 381354522
Weil-McLain - Expansion Tank Package - for CG-3-5/25 Boilers - 381354522
$289.00
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.
Simplify your piping construction with one of our boiler mechanical packages. With mechanical packages and panels matched to a variety of applications, we've got what you need to build the best hydronic system in town.