1/2 inch x 3/4 inch PEX Engineered Plastic Reducing Insert Coupling PEX x PEX

1/2" x 3/4" PEX Reducing Coupling – Engineered for Reliable PEX-to-PEX Transitions

The 1/2" x 3/4" PEX Reducing Coupling is designed to connect dissimilar PEX tubing sizes within potable water and hydronic systems. Manufactured from high-performance engineered polymer, this coupling supports a secure and code-compliant reduction between 1/2" and 3/4" lines without introducing turbulence or leak risk.

This component is molded to precise specifications and is compatible with ASTM F1807 or F2159 crimp and clamp systems. Suitable for both residential and light commercial installations, it ensures integrity under varied pressure and temperature conditions.

Field Performance Highlights

Designed with professional requirements in mind, this coupling offers the following key benefits:

• ✅ Exacting Dimensional Tolerances Consistent fit with PEX crimp rings and tools to ensure leak-free joint assembly.
• ✅ Non-Corrosive Body Constructed from engineered thermoplastic material rated for potable water applications and resistant to scale and pitting.
• ✅ High System Compatibility Interfaces with PEX Type A, B, and C tubing approved for residential and commercial distribution systems.
• ✅ Thermal Expansion Resilience Designed to maintain joint integrity across temperature fluctuations in closed-loop systems.
• ✅ Third-Party Certification Conforms to NSF/ANSI 61 and 372 standards for safe use in domestic water supply lines.

Technical Specifications

• Material: Engineered Polymer (Polyphenylsulfone or equivalent)
• Connection Type: PEX Crimp x PEX Crimp
• Nominal Size: 1/2" x 3/4"
• Pressure Rating: Up to 200 PSI @ 73°F (per applicable standard)

Common Use Cases

This reducing coupling is commonly used in PEX distribution systems where transitions between 3/4" mains and 1/2" branch lines are required. Ideal for potable water supply, radiant floor heating, and recirculation loops. Also effective in retrofit work where space constraints and varying pipe sizes are encountered.

Code Compliance Note

PEX systems using polymer fittings must comply with applicable plumbing codes and are subject to approval under third-party listing programs such as NSF or CSA. Always confirm material acceptance for local inspection jurisdictions.

The 1/2" x 3/4" PEX Reducing Coupling offers a reliable, corrosion-resistant solution for transitioning pipe sizes in pressurized plumbing systems. Its robust design and certification make it a dependable component in any PEX installation requiring size reduction without compromising hydraulic or mechanical performance.