3/4 inch x 1/2 inch Brass Reducing Coupling Female x Female

3/4 inch x 1/2 inch Lead-Free Brass Reducing Coupling – Built for Code-Compliant Transitions

The 3/4 inch x 1/2 inch Lead-Free Brass Reducing Coupling is engineered for professional-grade applications requiring a secure transition between nominal pipe sizes. Constructed from lead-free brass, this fitting is certified for use in potable water systems and meets national plumbing code requirements for safety and material performance.

Performance Features

• ✅ Lead-Free Brass – Certified to NSF/ANSI 61 and 372 standards, making it suitable for potable water distribution systems.
• ✅ Corrosion-Resistant – Brass material resists dezincification and pitting, supporting long-term use in high-pressure environments.
• ✅ Female NPT Threads – Precision-machined for a consistent, leak-resistant seal with compatible threaded pipe fittings.
• ✅ Size Compatibility – Reduces from 3/4 inch FNPT to 1/2 inch FNPT, ideal for installations requiring space-saving transitions between supply lines.

Technical Specifications

• Material: Lead-free brass (DZR-rated)
• Connection Type: Female National Pipe Thread (FNPT)
• Operating Pressure: Up to 200 PSI
• Temperature Range: 0°F to 200°F (depending on application)
• Certifications: NSF/ANSI 61, NSF/ANSI 372, ANSI B1.20.1 (thread standard)

Installation Considerations

Threaded brass couplings require proper sealing methods—typically PTFE thread sealant tape or pipe dope—applied to male threads before installation. Torque should be applied carefully to avoid over-tightening, which can stress the fitting and lead to cracking under pressure. Always verify compatibility with adjoining piping materials and local code compliance.

Common Applications

This reducing coupling is widely used in commercial and residential potable water systems, hydronic heating loops, and plumbing retrofits where space and sizing transitions are critical. It’s suitable for both new construction and remodel scenarios.

Regulatory Note

As of the Reduction of Lead in Drinking Water Act (effective January 2014), fittings in contact with potable water must meet stringent lead content limits. This coupling is fully compliant and suitable for installation in all U.S. jurisdictions.

Designed for contractors who demand reliability and code-ready components, the 3/4 inch x 1/2 inch Lead-Free Brass Reducing Coupling offers a clean, secure solution for connecting dissimilar pipe sizes with confidence in both performance and regulatory adherence.