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. Can be used with sweat brass compression or flare fittings Preferred and specified brand of industry professionals Incised markings ensure long term identification Made to applicable ASTM standards B88 B306 B819 Meets NSF 61G Lead free