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Red copper reducing coupling, cylindrical with two different diameter ends

Legend Valve

Legend Valve 450-557 4X2 Red Copper Reducing Coupling

SKU CH-0EDF-D04PR

A copper reducing coupling joining 4-inch and 2-inch pipes with a C x C connection

  • ColorTransparent
  • Size4" x 2"
  • TypePipes, Valves & Fittings
  • Reduces pipe diameter for flexible plumbing layouts
  • Copper construction resists corrosion in water systems
  • C x C solder joints create leak-free connections
  • 4" x 2" size fits standard residential piping
  • Prop 65 notice informs safe handling practices

Reducing Coupling for Copper Pipework

The Legend Valve 450-557 is a copper reducing coupling designed to join a 4-inch pipe to a 2-inch pipe in plumbing installations. It suits contractors and maintenance teams who need a reliable C x C sweat connection for water supply or heating systems.

4-Inch to 2-Inch Transition Capacity

The fitting handles the step-down from 4-1/8-inch outside diameter to 2-1/8-inch outside diameter with standard copper tube dimensions. It runs out when the application demands a different size reduction, a press-fit joint or a material other than copper.

Sweat-Joint Integration in Copper Systems

Installation requires flux, solder and a torch to form permanent capillary joints on both ends. The coupling frees the installer from mechanical fasteners or threaded adapters but cannot be used with push-fit or compression methods.

Highlights

  • Reduces pipe diameter for flexible plumbing layouts
  • Copper construction resists corrosion in water systems
  • C x C solder joints create leak-free connections
  • 4" x 2" size fits standard residential piping
  • Prop 65 notice informs safe handling practices

Specifications

BrandLEGEND VALVE
ColorTransparent
Size4" x 2"
TypePipes, Valves & Fittings

Questions about this item

Will the 450-557 reducing coupling fit onto my existing 4-inch and 2-inch copper pipes?

The coupling is sized at 4" x 2" ID and 4-1/8" x 2-1/8" OD for copper-to-copper sweat connections, matching standard pipe dimensions.

How can I confirm the 450-557 joint is watertight after soldering?

Pressurise the line and inspect the soldered C x C joints; a proper sweat connection shows a continuous fillet of solder around each hub with no drips or leaks.

Does the 450-557 package include flux, solder or any installation tools?

The box contains only the copper reducing coupling; flux, lead-free solder, emery cloth and a torch must be purchased separately.

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