| Standard Size, in. | Outside Diameter, in. (mm) | Wall thickness |
| 1/4 | 0.250 (6.35) | 0.028 (0.71) |
| 3/8 | 0.375 (9.25) | 0.028 (0.71) |
| 1/2 | 0.500 (12.7) | 0.028 (0.71) |
| 5/8 | 0.625 (15.9) | 0.028 (0.71) |
| 3/4 | 0.750 (19.1) | 0.028 (0.71) |
ท่อทองแดงชนิดม้วน KLM ASTM B280
T: 0-2267-3365-76
F: 0-2267-3248-9
| Standard Size, in. | Outside Diameter, in. (mm) | Wall thickness |
| 1/4 | 0.250 (6.35) | 0.028 (0.71) |
| 3/8 | 0.375 (9.25) | 0.028 (0.71) |
| 1/2 | 0.500 (12.7) | 0.028 (0.71) |
| 5/8 | 0.625 (15.9) | 0.028 (0.71) |
| 3/4 | 0.750 (19.1) | 0.028 (0.71) |