1/4 inch x 1/8 inch Copper Reducing Coupling Copper x Copper

1/4 inch x 1/8 inch Copper Reducing Coupling – Precision Fit for Compact Piping Transitions

The 1/4 inch x 1/8 inch Copper Reducing Coupling is engineered for high-integrity transitions between dissimilar tube sizes in plumbing and HVAC applications. Fabricated from lead-free wrought copper, this fitting offers long-lasting durability and is designed to meet stringent performance requirements in potable water and hydronic systems.

Performance Features

• ✅ Lead-Free Wrought Copper – Manufactured from ASTM B75/B88 compliant copper for safe use in drinking water systems.
• ✅ Consistent Wall Thickness – Ensures uniform heat transfer and reliable joint integrity during soldering.
• ✅ Reducing Coupling Design – Facilitates transitions between 1/4 inch and 1/8 inch nominal pipe sizes, ideal for compact or retrofitted piping runs.
• ✅ Corrosion-Resistant – Copper resists scaling and internal degradation, extending service life in closed or open-loop systems.

Technical Specifications

• Material: Lead-free copper (typically alloy C12200)
• Size: 1/4 inch x 1/8 inch nominal pipe size
• Connection: Sweat (socket x socket), compatible with soft and hard-drawn copper tubing
• Operating Pressure: Suitable for up to 200 PSI (non-shock, dependent on pipe wall and application)
• Applicable Standards: ANSI/ASME B16.22, NSF/ANSI 61 and 372

Typical Applications

Used in residential and light commercial plumbing systems, this reducing coupling is suitable for service water distribution, radiant heating loops, and mechanical equipment tie-ins. The compact profile makes it ideal for tight installation spaces or transitions at equipment terminations.

Installation Guidance

For best results, clean and deburr all pipe ends before soldering. Apply approved flux and use proper heat control techniques to ensure full solder penetration without overheating. Follow all applicable local and national plumbing codes when installing in potable systems.

Code Compliance Note

Lead-free copper fittings are mandatory for potable water systems in the United States per the Safe Drinking Water Act (SDWA) requirements.

The 1/4 inch x 1/8 inch Copper Reducing Coupling delivers efficient transitions, durability, and code compliance in a compact footprint—ideal for professional-grade plumbing system integrity.