Designed for high-performance HVAC installations, the Mueller Coiled Copper Lineset delivers a dependable, long-lasting solution for both residential and commercial systems. Measuring 3/8 inch OD liquid line and 3/4 inch OD suction line, this 50-foot lineset is wrapped in 1/2 inch thick Duraguard closed-cell insulation that’s engineered to resist UV damage, rips, and tears—even in extreme outdoor conditions.

Whether you're an experienced HVAC professional or a hands-on DIY installer, this Mueller copper lineset provides the flexibility, efficiency, and protection needed for reliable refrigerant flow and system performance.

Product Specifications:

• Liquid Line Size: 3/8 inch OD
• Suction Line Size: 3/4 inch OD
• Length: 50 feet
• Insulation Thickness: 1/2 inch
• Insulation Type: Duraguard UV- and rip-resistant foam
• Material: High-quality seamless copper tubing
• Use Case: Compatible with air conditioning units, mini splits, heat pumps, and central HVAC systems

Key Benefits:

• UV and tear-resistant insulation extends lifespan in outdoor installations
• Pre-insulated design saves time and labor during installation
• Superior thermal protection minimizes energy loss and prevents condensation
• Flexible construction makes routing and handling easier in tight spaces