Streamline copper tube provides the strength, precision and cleanliness needed for the demanding conditions of HVAC and refrigeration applications Preferred throughout the industry, our products have set the benchmark for HVACR copper tube Streamline Nitrogenized ACR copper tube is pressurized with nitrogen to provide maximum protection against the formation of harmful oxides normally formed during brazing operations Reduction of these oxides greatly reduces system contamination Streamline refrigeration service tube is of a consistent dead soft temper, bright, thoroughly dried or dehydrated and packed in shrink wrapping plus individual cartons for the highest level of protection