3/8" x 3/4" x 1/2" 50' Duraguard Mini-Split Copper Line Set

Mueller® 61220500C – 5/8" OD x 50 ft Refrigeration-Grade Copper Tube Coil (Nitrogen-Charged) Mueller® 61220500C is a 50-foot coil of seamless copper tubing with a 5/8-inch outside diameter, designed specifically for HVAC and refrigeration systems. Manufactured from UNS C12200 copper and internally nitrogen-purged to inhibit oxidation, this coil meets ASTM B280 specifications for cleanliness and mechanical integrity. This ACR (air conditioning and refrigeration) tube is rated for high-pressure applications up to 700 psi and can be used with R-410A, R-32, and other modern refrigerants. Its smooth interior surface helps maintain refrigerant purity and minimizes pressure drop in the system. The flexible coil format allows for simplified handling and routing during installation. Product Details Outside Diameter: 5/8 inch Length: 50 feet coil Copper Alloy: UNS C12200 Manufacturing Process: Seamless, nitrogen-charged interior Compliance: ASTM B280 (ACR specification) Maximum Working Pressure: 700 psi Maximum Service Temperature: 250°F Refrigerant Compatibility: Suitable for R-410A, R-32, and similar refrigerants Application & Use This tubing is suitable for residential and light commercial split-system air conditioners, heat pumps, and refrigeration equipment requiring field-brazed or flared connections. The product is designed for professional installation and should be handled according to mechanical code requirements to ensure system performance and long-term reliability.