Flow Control Materials

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Keep the water flowing in your boiler system with flow control materials. With a wide selection of valves, switches, and more, eComfort has the flow control materials to optimize the performance of your hydronic system.

Learn More About Caleffi 127359AF1G5
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 3/4" Sweat Connections, Low-Lead Brass
$83.82
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Learn More About Caleffi 127359AF2G5
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 3/4" Sweat Connections, Low-Lead Brass
$83.82
Factory-Direct
Learn More About Caleffi 127359AF3G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 3/4" Sweat Connections, Low-Lead Brass
$83.82
Factory-Direct
Learn More About Caleffi 127359AF3G5
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 3/4" Sweat Connections, Low-Lead Brass
$83.82
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Learn More About Caleffi 127359AF4G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 3/4" Sweat Connections, Low-Lead Brass
$83.82
Factory-Direct
Learn More About Caleffi 127359AF7G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 3/4" Sweat Connections, Low-Lead Brass
$83.82
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Learn More About Caleffi 127361AF10G
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1" NPT Male Connections, Low-Lead Brass
$99.26
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Learn More About Caleffi 127369AF3G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1" Sweat Connections, Low-Lead Brass
$96.32
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Learn More About Caleffi 127369AF6G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1" Sweat Connections, Low-Lead Brass
$96.32
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Learn More About Watts Radiant D3499375
Watts Radiant
Watts Radiant - D3499375 - 1" MNPT - FlowGuard - Order Number: 81001979
$175.00
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Learn More About Watts Radiant D3499480
Watts Radiant
Watts Radiant - D3499480 - 1" FNPT - FlowGuard - Order Number: 81001980
$233.00
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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 548006A
Caleffi Series 548 Hydronic Separator, 1" NPT Union Connections, pre-formed insulation
$423.94
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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 548007A
Caleffi Series 548 Hydronic Separator, 1-1/4" NPT Union Connections, pre-formed insulation
$508.45
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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 548008A
Caleffi Series 548 Hydronic Separator, 1-1/2" NPT Union Connections, pre-formed insulation
$666.90
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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 548009A
Caleffi Series 548 Hydronic Separator, 2" NPT Union Connections, pre-formed insulation
$776.76
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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 548096A
Caleffi Series 548 Hydronic Separator, 1" Sweat Union Connections, pre-formed insulation
$402.11
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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 Caleffi 548097A
Caleffi Series 548 Hydronic Separator, 1 1/4" Sweat Union Connections, pre-formed insulation
$485.21
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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 Caleffi 502243A
Caleffi Replacement High Capacity Air Vent, 1/2" NPT Male Connections, used with HydroLink Separators
$30.81
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Learn More About Caleffi 502343A
Caleffi Replacement High Capacity Automatic Air Vent with Check Valve, 1/2" NPT Male Connections
$36.47
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Learn More About Caleffi 626600A
Caleffi 1" NPT Male Universal Flow Switch with NEMA 5 Enclosure, Suitable for 1" to 8" Pipe, used with heating & air conditioning systems
$193.38
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Learn More About Caleffi 644350A 3BY
Caleffi 3-Way Bypass Motorized Ball Zone Valve, 3/4" NPT Connections, 12 Cv Ball, 1.5 Cv Bypass
$259.56
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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 644359A
Caleffi 3-Way Diverting Motorized Ball Zone Valve, 3/4" Sweat Connections, 4.5 Cv
$267.65
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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 644360A 3BY
Caleffi 3-Way Bypass Motorized Ball Zone Valve, 1" NPT Connections, 12 Cv Ball, 1.5 Cv Bypass
$302.21
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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 548098A
Caleffi Series 548 Hydronic Separator, 1 1/2" Sweat Union Connections, pre-formed insulation
$634.51
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.