General description Copper tube without insulation, designed specifically for air conditioning installations. This 1/4" (6.35mm) diameter tube features a thickness of 0.8mm and comes in a convenient 15-meter roll, making it ideal for various HVAC applications. Technical specifications Diameter: 1/4" (6.35mm) Thickness: 0.8mm Length: 15 meters Other information Complies with standard EN 12735.