Streamline® copper tube sets the standard for quality, consistency and service in the plumbing industries. With a full line of copper tube products to support most all plumbing supply and DWV applications, Streamline® copper tube is available in all common types including K-type, L-type, M-type and DWV. Each piece of tube is incised marked and color-coded for easy, long-lasting identity. Manufactured in accordance with applicable standards, our ongoing commitment to quality continues to make Streamline® copper tube the preferred and specified brand of industry professionals.