Duraguard Mini-Split Copper Line Set 1/4″ x 1/2″ x 1/2″ x 25′.

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 inchSuction Line OD: 5/8 inchLength: 25 feetCopper Grade: UNS C12200 (phosphorus-deoxidized, high residual phosphorus)Compliance: ASTM B280Insulation: 1/2″ wall, closed-cell polyethylene foam with UV-resistant Duraguard™ jacketPressure Rating: Up to 700 psiTemperature Range: -40°F to 250°FRefrigerant Compatibility: Suitable for R-410A, R-32, and other high-pressure refrigerantsProfessional Considerations Clean Bore: Tubing is nitrogen-purged and sealed for cleanliness during storage and handlingEase of Routing: Coiled configuration and flexible insulation allow installation through walls, ceilings, and tight chasesCorrosion Resistance: Copper and insulation materials are selected for durability in exterior applicationsInstallation: Ends are open for field flaring or brazing, depending on equipment specifications