Sioux Chief 638X Strapped Type L Copper Stub-Out, 1/2" PEX x Close Connection

Sioux Chief 638X Strapped Type L Copper Stub-Out, 1/2" PEX x Close Connection

The Sioux Chief 638X is a strapped, code-ready Type L copper stub-out built for closet and lavatory rough-in work, giving plumbers a fast way to stub up through the floor while holding the fitting square until the rough-in is finished out. Every unit in this family shares a 1/2" PEX x Close connection, transitioning cleanly from PEX water distribution tubing to a close-coupled fixture supply, and the family is available in 8" and 12" stub-out lengths so installers can match different floor and wall rough-in depths while keeping the same connection size and strapped design across the range. This stub-out is not designed to be used as a permanent air chamber, so plan the rough-in accordingly.

Key Features

• Trade Size: 1/2" PEX x Close connection shared across both length options, sized for closet and lavatory supply stub-outs.
• Available Lengths: Offered in 8" and 12" stub-out lengths so installers can match different floor and wall rough-in depths without switching platforms.
• Durable Construction: Machined from Type L copper for a durable, corrosion-resistant stub-out that holds up to the repeated stress of rough-in and finish plumbing work.
• Strapped Design: An integrated strap makes it easy to stub up through the floor for closets or lavatories, holding the fitting square and secure while the rough-in is finished out.
• PEX x Close Connection: One end accepts PEX tubing while the close end simplifies the transition to fixture supply connections, reducing the number of extra fittings needed at the stub-out.
• Rough-In Efficiency: The strapped body paired with the 1/2" PEX x Close connection speeds up closet and lavatory rough-in by keeping the stub-out aligned and ready for finish trim.
• Important Usage Note: Not intended for use as a permanent air chamber — install per code for its intended stub-out application only.

Technical Specifications

• Connection: 1/2" PEX x Close
• Available Lengths: 8" and 12"
• Packaging: 100 EA per case
• Country of Origin: United States

Typical Applications

• Closet and Lavatory Supply Stub-Outs
• Through-Floor Rough-In Plumbing
• PEX Water Distribution Line Terminations
• New Construction and Remodel Rough-In Work

Why Sioux Chief?

Sioux Chief backs the 638X stub-out family with solid Type L copper construction and a strapped design engineered for dependable through-floor rough-in work at closets and lavatories. Manufactured in the United States, it gives plumbing professionals a consistent, code-oriented fitting available in 8" and 12" lengths on a common 1/2" PEX x Close connection. Choosing Sioux Chief means specifying rough-in components built for the everyday demands of the jobsite, backed by clear guidance on proper, non-air-chamber use.