Mueller W01019 1/2 x 3/8 Coupling

The Mueller W01019 1/2 x 3/8 Coupling is a professional-grade wrot copper reducing coupling designed for high-performance HVACR and plumbing applications. Engineered to facilitate a seamless transition between 1/2-inch OD and 3/8-inch OD copper tubing, this CxC (Cup x Cup) fitting is manufactured to ASME B16.22 standards, ensuring consistent wall thickness and superior joint integrity. The wrought copper construction offers excellent thermal conductivity and corrosion resistance, essential for maintaining system efficiency in refrigeration cycles and potable water lines. This lead-free component is rated for 700 PSI and temperatures up to 250°F, making it compatible with modern high-pressure refrigerants like R-410A. Its precision-machined solder cups ensure a tight capillary fit, allowing for reliable brazing or soldering in demanding commercial and residential environments. Whether you are performing a line set repair or a new condenser installation, this Mueller Streamline coupling provides the industrial durability required for leak-free, long-lived mechanical connections.

• Precision Engineering: Manufactured to ASME B16.22 and ASTM B280 specifications for exact HVACR fitment.
• High Pressure Rating: Safely handles up to 700 PSI, making it suitable for ACR applications.
• Durability: Wrot copper (UNS C12200) provides superior strength and resistance to scaling.
• Versatile Compatibility: Seamlessly connects 1/2" OD to 3/8" OD tubing across Type K, L, and M copper.
• Lead-Free Certified: Fully compliant with NSF/ANSI 61 for safe use in potable water systems.

• Is this coupling suitable for high-pressure refrigerants? Yes, its 700 PSI rating and wrot copper build are designed for ACR systems, including those using R-410A.
• Does this fitting require brazing or soldering? This is a C x C sweat fitting, requiring standard brazing for refrigeration or soldering for plumbing applications.
• What are the actual dimensions for HVACR use? In HVACR terminology, this is a 1/2" OD x 3/8" OD reducer; in plumbing (nominal), it is referred to as 3/8" x 1/4".

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.