3/4 inch Copper Coupling with Stop Copper x Copper (Pack of 25)

3/4 inch Copper Coupling – Seamless DWV and Potable Water Line Integration

The 3/4 inch Copper Coupling is a critical component for joining hard-temper copper tubing in both drainage, waste, vent (DWV) and domestic water distribution systems. Manufactured to strict tolerances, this coupling offers a clean, solder-joint configuration suitable for pressurized and gravity-fed installations.

Fabricated from wrought copper to meet ASTM B75 and B88 specifications, the coupling delivers long-lasting corrosion resistance, mechanical integrity, and thermal conductivity. It is NSF/ANSI 61 and NSF 372 certified for potable water use and is compliant with the Reduction of Lead in Drinking Water Act.

Contractor-Grade Performance Features

• ✅ Precision Socket Dimensions – Allows for consistent capillary action during soldering for dependable leak-proof seals
• ✅ Uniform Wall Thickness – Engineered to handle pressure ratings up to 200 PSI (when properly soldered) at 100°F
• ✅ Lead-Free Compliance – 100% compliant with national and regional code requirements for potable water systems
• ✅ High Thermal Conductivity – Facilitates fast heat transfer during brazing and soldering applications

Specifications

• Material: Wrought Copper (Alloy C12200)
• Size: 3/4 inch Nominal
• Connection Type: Cup x Cup (Slip fit solder connection)
• Certification: NSF/ANSI 61, NSF 372, ANSI B16.22, Lead-Free Compliant
• Standard: ASME/ANSI B16.22, MSS SP-104
• Pack Size: 25 units

Typical Applications

Commonly used in hot and cold potable water distribution lines, HVAC hydronic loops, and DWV transitions. This coupling is ideal for both new construction and retrofitting copper piping in residential, commercial, and institutional projects.

Installation Considerations

Designed for soldered joints using ASTM B813 water-soluble flux and ASTM B32 solder. Pipe ends must be cleaned and reamed. Heating should be uniform to ensure full capillary draw of the filler metal. Adhere to IPC/UPC code guidelines during assembly and pressure testing.

Code Insight

Per the Safe Drinking Water Act, copper fittings used in potable systems must meet lead-free definitions—this coupling is fully certified for such compliance and suitable for use nationwide.

The 3/4 inch Copper Coupling is a durable, standards-compliant solution for contractors seeking reliable joining of copper tube systems. Specified for performance, engineered for ease of installation, and compliant with modern plumbing codes.