Sioux Chief 643-C CPVC Stub Out, Press-Fit Copper End Rough-In Fitting

Sioux Chief 643-C CPVC Stub Out, Press-Fit Copper End Rough-In Fitting

The Sioux Chief 643-C CPVC Stub Out with Press-Fit Copper End gives plumbing professionals a ready-to-install transition fitting for supply line rough-in, available in 1/2" x 11" and 3/4" x 11" lengths to match common rough-in depths. The fitting pairs a durable CPVC body with a plain copper end that is press-fitting compatible, allowing a quick mechanical connection between CPVC and copper piping without soldering the CPVC side of the joint. Manufactured in the United States, the 643-C is built for new construction and remodel plumbing where a dependable, code-ready stub out is required behind the wall.

Key Features

• Trade Size Range: Available in 1/2" x 11" and 3/4" x 11" lengths, giving installers a stub out sized for a range of rough-in depths and fixture connection points.
• Durable CPVC Body: The stub out body is manufactured from CPVC for corrosion resistance and long-term durability in potable water supply lines.
• Press-Fit Compatible Copper End: The plain copper end is press-fitting compatible, enabling a fast mechanical connection to copper piping without additional soldering at that joint.
• Do Not Heat CPVC Portion: The CPVC portion of the fitting must not be heated during installation or when soldering the adjacent copper piping, protecting the integrity of the CPVC material.
• Do Not Cut: This fitting is not designed to be cut to length in the field; cutting it voids the manufacturer warranty, so installers should select the correct 1/2" x 11" or 3/4" x 11" length before installing.
• Country of Origin: Manufactured in the United States.

Technical Specifications

• Country of Origin: United States
• Packaging: 50 EA per carton
• Trade Size Range: 1/2" x 11" - 3/4" x 11"
• End Configuration: CPVC body with plain copper open end, press-fitting compatible

Typical Applications

• Plumbing Supply Line Stub-Outs
• CPVC-to-Copper Transition Connections
• New Construction Rough-In Plumbing
• Renovation and Remodel Plumbing Projects
• Fixture Supply Rough-In Behind Walls

Why Sioux Chief?

Sioux Chief backs the 643-C stub out with United States manufacturing and clear installation guidance that protects the fitting's performance, including keeping the CPVC portion free of heat and leaving the fitting uncut to preserve the warranty. The press-fitting compatible copper end gives installers a dependable way to join CPVC and copper systems with confidence, while the 1/2" x 11" and 3/4" x 11" length options make the 643-C easy to stock and specify across rough-in configurations for both new construction and remodel plumbing work.