1/2 inch PEX Copper 90 Degree Stub-Out Elbow (3-1/2 inch x 8 inch)

1/2 Inch PEX Copper 90° Stub-Out Elbow – PEX x Copper

The 1/2 inch PEX copper 90-degree stub-out elbow is a transition fitting used to support and terminate PEX tubing at fixture outlets. Designed with a PEX connection on one end and a rigid copper stub-out on the other, this fitting enables secure mounting at the point of use while maintaining compatibility with standard PEX plumbing systems.

Product Construction and Design

• ✅ Material: Lead-free wrought copper and brass components conforming to ASTM F877 and F1807 (or F1960, depending on configuration)
• ✅ Connection: Crimp or cold-expansion PEX inlet x rigid copper tube outlet (typically 6 inch or longer)
• ✅ Bend Angle: 90° configuration facilitates perpendicular transitions from wall cavities to finished wall outlets
• ✅ Stub-Out Support: Provides a fixed point for future valve installation, often secured with a bracket or clamp
• ✅ Potable Water Compliance: NSF/ANSI 61 and 372 certified for use in drinking water systems

Installation Practices

The PEX end is joined to distribution tubing using approved crimp rings or expansion sleeves, depending on system type. The rigid copper outlet allows for bracketing within stud bays and is typically capped or fitted with an angle stop during trim-out. Ensure that the stub-out is properly anchored and aligned to accommodate valve or escutcheon installation.

Field Applications

Commonly used in residential and light commercial systems for water supply termination at lavatories, kitchen sinks, toilets, and laundry boxes. This fitting is installed during the rough-in phase to establish precise outlet locations through walls or cabinets.

Technical Summary

• Nominal Size: 1/2 inch
• Inlet: PEX (crimp or expansion depending on specification)
• Outlet: Rigid copper tube, type L or M
• Orientation: 90° elbow configuration
• Listings: NSF 14, NSF/ANSI 61, NSF/ANSI 372, ASTM F877, IPC/UPC compliant

Compliance Note

Use in accordance with local plumbing codes requiring lead-free components for potable water systems. Compatible with ASTM F876 PEX tubing and commonly used with mounting brackets or support plates for code-compliant fixture stub-out assemblies.

The 1/2 Inch PEX Copper 90° Stub-Out Elbow is a durable, code-approved solution for terminating PEX water lines at fixture points. Its rigid copper outlet ensures alignment and valve compatibility, while the PEX inlet integrates with standard residential water distribution systems.