3/8 inch x 1/2 inch Brass Compression Reducing Adapter Lead-Free OD x Nominal

1/2 inch Nominal x 3/8 inch OD Lead-Free Copper Adapter – Braxton Harris C666-6-LF

The Braxton Harris C666-6-LF adapter provides a precise and code-compliant transition between 1/2 inch nominal pipe and 3/8 inch OD tubing. Constructed from lead-free brass and engineered for compression connections, this fitting is suitable for potable water systems and retrofit installations where reliability and corrosion resistance are required.

Key Performance Features

• ✅ Material Integrity Manufactured from lead-free brass to comply with NSF 61 and 372 standards for potable water applications.
• ✅ Compression Design Ensures a secure seal without soldering, ideal for connections where open flame is not permitted.
• ✅ Dimensional Accuracy Fabricated to industry-standard tolerances to support consistent sealing performance in high- and low-pressure lines.
• ✅ Corrosion Resistant Brass alloy resists dezincification, preserving structural integrity in domestic water systems.

Technical Specifications

• Manufacturer: Braxton Harris
• Model: C666-6-LF
• Material: Lead-free brass
• Size: 1/2 inch nominal x 3/8 inch OD
• Connection Type: Compression x Compression
• Certifications: Compliant with NSF/ANSI 61 & 372 for potable systems

Installation Considerations

This adapter is designed for use with standard compression tools. Ensure that ferrules and nuts are properly aligned and tightened to spec. For optimal performance in sealed systems, verify clean, burr-free pipe ends and inspect for proper alignment during torque application. Avoid overtightening to prevent deformation of the tubing or ferrule.

Common Applications

Primarily used in residential and light commercial plumbing, this fitting supports transitions between supply risers, fixture stub-outs, and branch lines requiring size reduction between nominal and OD copper. It is frequently deployed in kitchen and bathroom retrofits, water filtration bypasses, and under-sink connections.

Compliance Insight

Federal Safe Drinking Water Act revisions mandate the use of lead-free materials in drinking water systems. The C666-6-LF meets current requirements, including those outlined by the Reduction of Lead in Drinking Water Act (SDWA Section 1417).

For professional-grade assemblies that demand accuracy, material compliance, and durability, the Braxton Harris C666-6-LF adapter delivers proven results. Ensure compatibility with mating pipe systems and pressure test per local jurisdiction guidelines.