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Transparent copper coupling, four by four and one eighth inches, no stop, C by C

Legend Valve

Legend Valve 450-591 4 CXC Coupling w/o Stop Bathware

SKU CH-2Q9J-A2V8W

A 4-inch copper C×C coupling without a stop for joining two pipes of the same diameter

  • ColorTransparent
  • Size4" x 4-1/8"
  • TypePipes, Valves & Fittings
  • 4-inch copper coupling joins pipes securely
  • Stop-free design allows continuous flow through fitting
  • C x C connection fits copper pipe directly
  • Transparent finish shows material quality clearly
  • Proposition 65 notice included for California compliance

Product identity

This is a 4 inch copper coupling without an internal stop designed for sweat connections in plumbing systems. It joins two copper pipes of the same diameter in residential or commercial water supply lines.

Thermals noise power

The fitting contains no moving parts electrical components or active cooling so it generates no noise and draws no power. Thermal performance follows the surrounding copper pipework and the temperature of the fluid inside.

Build and connectors

The transparent coloured coupling uses a C x C sweat configuration requiring soldering for a permanent leak free joint. Absence of a stop means pipes can slide fully through which aids alignment but demands careful measurement during installation. California Proposition 65 warnings apply due to chemical content.

Highlights

  • 4-inch copper coupling joins pipes securely
  • Stop-free design allows continuous flow through fitting
  • C x C connection fits copper pipe directly
  • Transparent finish shows material quality clearly
  • Proposition 65 notice included for California compliance

Specifications

BrandLEGEND VALVE
ColorTransparent
Size4" x 4-1/8"
TypePipes, Valves & Fittings

Questions about this item

How do I solder the 450-591 copper coupling without a stop, and what step causes leaks?

Clean both pipe ends and the coupling sockets with emery cloth, apply flux, slide the coupling fully onto each pipe, then heat evenly and feed solder until the joint rings completely; the step that causes leaks is stopping heat too early so solder does not flow around the full circumference.

What maintenance will the 450-591 coupling need after installation?

No routine maintenance is required; inspect joints periodically for green corrosion or drips, and if a leak appears the coupling must be cut out and replaced because it cannot be tightened or serviced in place.

What limit appears first on the 450-591 coupling under continuous hot-water use?

The copper material itself handles typical domestic hot-water temperatures and pressures; the practical limit is the solder joint melting point, so sustained exposure above the solder alloy’s rating will cause failure before the coupling body does.

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