Part No. UCR Size Tube O.D. D Tube W.T. T Dimension (mm) inch inch mm inch mm A B F-CSGS-04- 1/4 1/4 6.35 0.039 1.00 18.95 10.00 F-CSGS-0804- 1/2 1/4 6.35 1.00 19.45 F-CSGS-0806- 1/2 3/8 9.53 1.00 F-CSGS-08- 1/2 1/2 12.70 0.049 1.24