Barrow PETG Tubing (Normal Temperature), 12mm ID, 16mm OD, 500mm length, Red, 4-pack Go to amazon.com Related posts Top 10 best petg tubing red FeaturePETG tubing for PC watercooling applicationNormal bending temperature (70C)12mm Inner Diameter / 16mm Outer Diameter500mm LengthColor: Red DescriptionBarrow PETG Tubing (Normal Temperature), 12mm ID, 16mm OD, 500mm length, Red, 4-pack Model: TR-PG1612-L-4P.