Mueller Industries KS02100 Copper Seamless Tube 3/8 in Od

Product Description

The MUELLER INDUSTRIES KS02100 is a 100-foot coil of seamless copper tubing manufactured from C12200 phosphorus deoxidized copper. With a 3/8 inch outside diameter, 0.250 inch inside diameter, and 0.035 inch wall thickness, this tube delivers consistent dimensional tolerances and leak-free performance in demanding trade applications. Weighing 0.145 pounds per foot, it is lightweight and easy to handle during field runs. It meets ASTM B88 and NSF 61G standards, making it suitable for both refrigeration line sets and potable water systems. Licensed plumbers, HVAC technicians, and pipefitters rely on this type of tubing for clean, reliable connections in new construction and retrofit work.

This tubing is used across residential and light commercial applications where a 1/4 inch nominal size copper line is required. Common uses include refrigerant suction and liquid line extensions, condensate drain lines, potable water supply runs, and fuel oil transfer lines. The seamless construction eliminates weld seams, reducing potential leak paths and improving pressure integrity throughout the run. The 100-foot coil length provides enough material for most single-system installations without requiring a splice.

Key Features

• Seamless construction from C12200 phosphorus deoxidized copper for consistent wall integrity
• 3/8 inch OD with 0.035 inch wall thickness for reliable pressure handling
• Meets ASTM B88 and NSF 61G standards for plumbing and potable water service
• 100-foot coil length minimizes field splices on standard installations
• 0.145 pounds per foot weight keeps handling and bending effort low
• Compatible with standard flare, sweat, and compression fittings sized for 3/8 inch OD tubing

Compatibility

Designed as an OEM-style and field-replacement copper tube coil for use with standard 3/8 inch OD flare, sweat, and compression fittings in HVAC, plumbing, and refrigeration installations where ASTM B88 Type L or equivalent seamless copper tube is specified.

Installation Notes

HVAC technicians and licensed plumbers are the typical installers for this product. Shut off refrigerant flow or isolate the water supply before cutting into any existing line. Use a proper tubing cutter rather than a saw to maintain round, burr-free ends before flaring or soldering. All potable water installations must comply with applicable IPC or local plumbing code requirements, and refrigerant line work must follow EPA Section 608 handling procedures.