1/2 inch Copper PEX Crimp 90 Degree Closed End Stub Out Less Wall Plate Crimp x Fitting

1/2 inch Copper PEX Crimp 90° Closed-End Stub Out – ASTM F1807 Compliant Termination Fitting

The 1/2 inch Copper PEX Crimp 90° Closed-End Stub Out is a pre-formed copper fitting designed for terminating PEX supply lines at fixture locations. Commonly installed in residential and multi-family new construction, this component offers a rigid, right-angle outlet point that simplifies fixture alignment and wall penetration layout.

Manufactured from lead-free wrought copper, this fitting meets ASTM B88 and ASTM F1807 specifications for crimp-style PEX systems. It provides a secure mechanical connection to PEX tubing using copper crimp rings or stainless steel clamp systems and features a closed end to maintain system pressure integrity until final trim-out and fixture connection.

Technical Specifications

• ✅ Nominal Size: 1/2 inch PEX x 1/2 inch Stub (closed-end)
• ✅ Material: Lead-Free Wrought Copper (NSF 61/NSF 372 Certified)
• ✅ Connection Method: ASTM F1807 Crimp/Clamp PEX Barb
• ✅ Bend Angle: 90 Degrees – Fixed Right Angle
• ✅ End Type: Closed Cap (pre-pressurized systems or pre-wall finish)
• ✅ Operating Pressure: 160 PSI @ 73°F; 100 PSI @ 180°F
• ✅ Temperature Rating: Up to 200°F

Applications

Used to establish a clean, anchored point for lavatories, kitchen sinks, toilets, and other fixtures, this stub out is installed before wall finishes are applied. It serves as a rigid, closed termination point until the line is trimmed, flushed, and connected during fixture rough-in. Often mounted to stud brackets or support plates using pipe straps or clamps.

Code & Compliance Considerations

This fitting complies with national and local plumbing codes requiring lead-free components in potable water systems. It is listed for use in PEX water distribution per NSF/ANSI 61 and 372, and meets uniform plumbing and mechanical codes under IPC, UPC, and CSA B137.5.

Installation Notes

Install with approved crimping or clamping tools per PEX system specifications. The closed end allows for pre-pressure testing and system integrity verification prior to final fixture installation. Proper alignment and support bracketing help reduce movement during drywall or finish installation.

Summary

The Viega 1/2 inch Copper PEX Crimp 90° Closed-End Stub Out provides a robust, code-approved solution for terminating PEX water lines at fixture points. With its rigid copper construction and pre-formed right-angle geometry, it streamlines rough-in installations and maintains system integrity until final plumbing trim-out. Ideal for professional installation in PEX-based potable water systems.