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 Type K, Type L, Type M and utility grade DWV. Each piece is marked and color coded for easy identity.For use in above-ground potable water supply systemsMeets ASTM standardsContinuously marked with sizeConstructed of high grade copperIncised marked and color coded for long lasting identitySpecified brand of industry professionals