1/2 inch Copper Coupling with Stop Copper x Copper (Pack of 25)

1/2 inch Copper Coupling – Sweat x Sweat, Lead-Free

The 1/2 inch copper coupling is a seamless fitting designed for joining two sections of nominal 1/2-inch copper tube in plumbing systems. Constructed from high-grade wrought copper, this fitting is intended for use in soldered (sweat) connections and is suitable for both hot and cold potable water lines, hydronic heating, and low-pressure HVAC applications.

This coupling is manufactured in compliance with ASTM B75 and ASTM B88 standards and meets NSF/ANSI 61 and 372 requirements for use in potable water systems. It is a lead-free component, conforming to current U.S. Safe Drinking Water Act regulations, and is listed for residential and commercial use under UPC and IPC model plumbing codes.

Product Specifications

• Nominal Size: 1/2 inch (Copper Tube Size – CTS)
• Connection Type: Cup x Cup (sweat x sweat)
• Material: Wrought copper (ASTM B75/B88, lead-free alloy)
• Pressure Rating: Up to 200 psi at 210°F (soldered connection)
• Certifications: NSF/ANSI 61 and 372, UPC listed

Installation Notes

Intended for use with soldered joints. Pipe ends must be clean, deburred, and properly fluxed prior to assembly. Heat should be applied evenly to the fitting until solder flows uniformly into the joint. Always allow adequate cooling before pressure testing the system. Not designed for press-fit, crimp, or push-to-connect methods.

Application Use

This coupling is used in water supply systems to extend, repair, or modify existing copper tubing. It is also commonly used in mechanical rooms, fixture supply lines, and riser systems in residential and light commercial buildings. Its compact form makes it ideal for confined installations where minimal fitting footprint is necessary.

Code Compliance Insight

All copper fittings used in potable water systems are required to be manufactured from lead-free alloys per the Reduction of Lead in Drinking Water Act. This coupling meets those requirements and can be specified for use in any U.S. jurisdiction without restriction.