Tubing; Outside Diameter 3-1/8 Inch; Inside Diameter 3 Inch; Wall Thickness 0.09 Inch; Length 20 Foot; Material Copper; Material Specification ASTM B88/B306/B819; Pressure Rating 700 PSI; Weight 3.33 Pound per Foot; Application Plumbing, Air-Conditioning, Refrigeration, Medical Gas; Applicable Standard NSF 61G, UL; Lead-Free; Type ACR