3/8" x 5/8" x 1/2" 50' Duraguard Mini-Split Copper Line Set

Streamline® 61020500B6C – 3/8" x 5/8" x 50 ft Duraguard Mini-Split Copper Line Set The Streamline® 61020500B6C line set provides 50 feet of insulated copper tubing for ductless mini-split HVAC systems. It includes a 3/8-inch liquid line and a 5/8-inch suction line, both manufactured from seamless, phosphorus-deoxidized copper (UNS C12200). Each tube is nitrogen-charged to ensure internal cleanliness and is compliant with ASTM B280 standards for residential and light commercial refrigeration applications. The suction and liquid lines are pre-insulated with a closed-cell polyethylene foam jacket that includes a UV-resistant Duraguard™ outer coating. This insulation minimizes thermal losses and provides mechanical protection during and after installation. Product Features Tubing Size: 3/8 in. OD liquid line and 5/8 in. OD suction line Length: 50 feet continuous coil Copper Type: UNS C12200, nitrogen-purged, seamless construction Insulation: 1/2 in. wall closed-cell foam with UV-stabilized Duraguard™ jacket Compliance: Meets ASTM B280 for refrigerant-grade copper tubing Operating Pressure: Rated to 700 psi working pressure Temperature Range: -40°F to 250°F Refrigerant Compatibility: Suitable for use with R-410A, R-32, and other high-pressure refrigerants Application Guidance This line set is engineered for ductless split-system installations and is designed to meet the mechanical and thermal requirements of modern HVAC systems. The pre-insulated configuration saves installation time, while the copper’s workability allows for easier routing in confined or retrofit environments. For best results, it should be field-terminated with proper flaring or brazing techniques by trained personnel.