Highlights: 3/8" x 50' orange plastic coated copper tube for use in fuel applications polyethylene coating is extruded directly onto the copper providing consistent corrosion protection eliminates the need for on-site wrapping or sleeving, creating a savings on labor and a professional looking installation suitable for direct Burial or through concrete slab compatible with standard solder-fittings, brazing techniques as well as compression fittings complies with applicable ASTM standards and is continuously marked with size, specification information, manufacturing code and footage every two feet manufactured to reduce work hardening grooved for leak detection meets NFPA 31 standard for the installation of oil-burning equipment ffa fitting, made in the USA.