Hard Tubing; Applicable Standard NSF 61G; Outside Diameter 1-5/8"; Inside Diameter 1-1/2"; Wall Thickness 0.072"; Length 20'; Material Copper; Material Specification ASTM B88, ASTM B306, ASTM B819; Weight 1.36 Lb Per Ft; Application Plumbing, Refrigeration, HVAC Industries, Medical Gas; Type K