Mueller Streamline Co. provides copper plumbing tube and wrot copper fittings from pure copper cathode and recycled scrap copper. The final product composition is generally 99.9% pure copper. These products have and continue to be in compliance with the “Lead-Free†_x009d_ laws passed in California and Vermont. Additionally, these products are certified to meet ANSI/NSF 61Annex G. Solder-type for copper supply systems Coupling is copper to copper without stop Used to join two pieces of copper pipe together