Upgrade Your HVAC System with the Mueller HVAC Line Set – Built for Performance and Reliability When it comes to HVACR applications, the Mueller Streamline® Copper Line Set stands out as a top choice for both professional contractors and DIY enthusiasts. Engineered from UNS C12200 copper tube and compliant with ASTM B280 standards, this Streamline® line set is built for reliable, long-lasting performance across residential and commercial refrigerant line installations. UL Recognized to 700 PSI and fully compatible with R410A and other synthetic refrigerants, this 35 ft standard copper line set features a 3/8" liquid line and 3/4" suction line with 3/8" elastomeric insulation — delivering consistent liquid refrigerant and gaseous refrigerant flow throughout the heat exchange process. The proprietary manufacturing process ensures kink-free routing between your outdoor condenser unit and indoor evaporator unit, saving time on every install. Whether you're a seasoned contractor or a DIY homeowner, this made in USA Mueller Streamline® copper line set — backed by a 10-year limited warranty on the copper tube — offers the quality, durability, and performance you need to get the job done right. Why Choose the Mueller Copper Line Set? The Mueller HVAC line set is designed with the needs of HVAC professionals in mind. This line set represents the gold standard in HVAC refrigerant piping, delivering unmatched reliability and performance for demanding applications. Here's why this line set is a trusted choice among professionals: ✅ Durable UNS C12200 Copper – This high-quality material ensures your line set provides longevity and resistance to corrosion. ✅ Nitrogen-Purged for Cleanliness – The nitrogenization process prevents contaminants from affecting your line set performance. ✅ High Pressure Tolerance – With a pressure rating of up to 700 psi, this HVAC line set withstands demanding environments. ✅ Flexible Design – Allows for easy line set handling and installation, even in tight spaces. ✅ Leak-Proof Construction – Minimizes refrigerant loss, enhancing line set efficiency and performance. ✅ Compatible with Eco-Friendly Refrigerants – This line set meets modern standards for various refrigerants. ✅ Meets ASTM B280 Standards – Ensures line set compliance with industry regulations. Superior Construction and Materials The Mueller Streamline® copper line set utilizes premium UNS C12200 copper tube, manufactured to ASTM B280 and ASTM B1003 standards — providing exceptional corrosion resistance and thermal conductivity that ensures
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