1/4" x 1/2" x 1/2" 25' Duraguard Mini-Split Copper Line Set

Streamline® 40820250B6C – Duraguard Mini-Split Line Set, 1/2" x 5/8" x 25 ft The Streamline® Duraguard mini-split line set (Model 40820250B6C) includes 25 feet of pre-insulated copper tubing designed for residential and light commercial ductless split-system HVAC installations. Manufactured with Type L, nitrogen-charged UNS C12200 copper, this line set meets ASTM B280 standards for refrigeration-grade tubing and is rated for pressures up to 700 psi. It includes one 1/2 inch liquid line and one 5/8 inch suction line, each pre-insulated with closed-cell polyethylene foam and covered with a UV-resistant Duraguard™ outer jacket. The insulation maintains thermal integrity and resists weather exposure during outdoor installation. Specifications Liquid Line OD: 1/2 inch Suction Line OD: 5/8 inch Length: 25 feet Copper Grade: UNS C12200 (phosphorus-deoxidized, high residual phosphorus) Compliance: ASTM B280 Insulation: 1/2" wall, closed-cell polyethylene foam with UV-resistant Duraguard™ jacket Pressure Rating: Up to 700 psi Temperature Range: -40°F to 250°F Refrigerant Compatibility: Suitable for R-410A, R-32, and other high-pressure refrigerants Professional Considerations Clean Bore: Tubing is nitrogen-purged and sealed for cleanliness during storage and handling Ease of Routing: Coiled configuration and flexible insulation allow installation through walls, ceilings, and tight chases Corrosion Resistance: Copper and insulation materials are selected for durability in exterior applications Installation: Ends are open for field flaring or brazing, depending on equipment specifications