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Mueller 61280500 AC Line Set - 3/8" x 3/4" Tubing, 3/8" Insulation, 50 Ft, Standard Refrigerant Line, Domestic, Copper, Brown Reviews

4.3 Rating 105 Reviews
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Upgrade Your HVAC System with Streamline® Copper Line Set – Reliable Performance for Every Application When it comes to HVAC systems, the quality of your components can make all the difference. Streamline® Copper Line Sets are engineered to deliver exceptional performance and durability, ensuring your refrigeration applications — from heat pump systems to ductless mini splits — run smoothly and efficiently. Built from premium copper tube and rated to 700 PSI, Streamline® line sets are UL recognized and compliant with ASTM C-534 and UL 25-50 Fire & Smoke Rating standards, making them the go-to choice for both professional contractors and DIY homeowners alike. Streamline® has been an industry leader for decades, leveraging years of expertise in producing copper tubing for every line set they manufacture. Whether you're routing a liquid line from the outdoor condenser unit or a suction line to the indoor evaporator unit, every Streamline® Line Set meets rigorous standards for quality and consistency. Designed for use with R410A and other synthetic refrigerants, Streamline® line sets feature durable elastomeric insulation — available with a polyamide Hycot coating or coated elastomeric insulation — to maximize efficiency throughout the heat exchange process. Sets come complete with pre-attached flare nuts for secure, leak-free flare connections, saving time on every install. From mini split line sets and insulated single lines to all-aluminum line sets and copper line sets with custom connections, Streamline® offers a broad range of diameter options, insulation thicknesses, and configurations to meet your most specialized needs. All products are made in USA through integrated production processes and backed by a 10-year limited warranty — packaged in a protective damage control carton or convenient bulk packaging for larger jobs. Why Choose Streamline® Copper Line Set?     ✅ High-Quality Copper Construction – Crafted from durable UNS C12200 copper, this line set offers outstanding strength and long-lasting resistance to wear and corrosion. ✅ Nitrogen-Treated – Maintains cleanliness and meets stringent ASTM B280 standards for pressure and chemical resistance. ✅ Flexible Design – Allows for easy installation in tight spaces, streamlining setup in various configurations. ✅ High Operating Pressure – Engineered to withstand pressures up to 700 psi, making it reliable for demanding environments. ✅

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“Perfect 3/8" x 3/4" sizing for extended AC runs. Quality copper and 50-foot length make installation straightforward.”
Helpful Report
Posted 2 years ago
“On my setup, 3/8" x 3/4" sizing works for most AC setups with long runs. Adequate quality and reasonable price point.”
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Posted 2 years ago
“In my case, Medium AC runs with basic insulation perform reliably, but thicker insulation would be better for long standard runs.”
Helpful Report
Posted 3 years ago
“Difficult to uncoil in cold weather, insulation came in 6' sections, which could lead to condensation leaks.”
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Posted 3 years ago
“Item advertised as made in USA, received as made in Vietnam. Covering for 3/4 line chopped into 6' sections. Quality concerns with pre-charge holding.”
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Posted 3 years ago
“Heat pump compatibility is excellent, installation is straightforward and plug-and-play, and the system delivers reliable performance once installed.”
Helpful Report
Posted 3 years ago
Persephone B
Verified Reviewer
“At install, standard line set that handles long runs effectively. Quality is steady and pricing remains fair.”
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Posted 3 years ago
“Standard insulation for extended runs. Works well in dry conditions but may require thicker insulation in moist environments.”
Helpful Report
Posted 3 years ago