Mueller Industries LSC3020P Copper Seamless Tube 20 Ft

Product Description

The MUELLER INDUSTRIES LSC3020P is a seamless copper tube designed for refrigeration, HVAC, and plumbing applications requiring reliable, leak-free fluid or refrigerant conveyance. This 20-foot length features a 1/2 inch outside diameter, a 3/8 inch inside diameter, and a wall thickness of 0.035 inches. Seamless construction eliminates the longitudinal weld seam found in welded tube, reducing the risk of failure under pressure cycling. At 0.198 pounds per foot, the coil weighs approximately 3.96 pounds and is sized for easy handling and routing through equipment cabinets, wall chases, and mechanical rooms. Licensed HVAC technicians, refrigeration mechanics, and plumbers are the primary installers of this product.

This tube is suited for residential and light commercial refrigerant line sets, hydronic distribution lines, and general plumbing rough-in where copper is the specified material. The 3/8 inch nominal size is commonly used for suction and liquid lines on smaller cooling systems, as well as domestic water supply branches. The 20-foot coil length provides enough continuous run for most single-equipment installations without requiring a mid-run fitting joint.

Key Features

• Seamless copper construction for consistent wall thickness and no weld-seam failure points
• 1/2 inch OD with 0.035 inch wall thickness for pressure-rated service
• 20-foot continuous length minimizes the number of solder or flare joints required
• 0.198 pounds per foot — lightweight for overhead and in-wall routing
• 3/8 inch nominal size fits standard fittings, flare nuts, and swage connections in that size class

Compatibility

Designed as an OEM-style and field-supply replacement copper tube for residential and light commercial HVAC, refrigeration, and plumbing systems requiring 1/2 inch OD seamless copper tube in the 3/8 inch nominal size class.

Installation Notes

Installation should be performed by a licensed HVAC technician, refrigeration mechanic, or plumber in accordance with applicable mechanical and plumbing codes, including ASHRAE, IFGC, and IPC guidelines where relevant. Isolate and recover any refrigerant charge or depressurize the water system before cutting into an existing line. Use appropriate tube cutters, deburring tools, and flux when soldering or brazing joints; avoid overheating the tube wall, which can compromise temper and wall integrity. Support the tube at intervals consistent with local code requirements to prevent sag and vibration stress at joints.