What Is Your Tube Inner Diameter (ID)?
Select the closest match to your tube ID from the chart below.
Click the link at the bottom if your tube ID is not on the chart.
| 1/2" | 5/8" | 3/4" | 7/8" | 1" | 1 1/4" | 1 1/2" | |
|---|---|---|---|---|---|---|---|
| 14g 0.083" |
0.334" | 0.459" | 0.584" | 0.709" | 0.834" | 1.084" | 1.334" |
| 15g 0.072" |
0.356" | 0.481" | 0.606" | 0.731" | 0.856" | 1.106" | 1.356" |
| 16g 0.065" |
0.370" | 0.495" | 0.620" | 0.745" | 0.870" | 1.120" | 1.370" |
| 17g 0.058" |
0.384" | 0.509" | 0.634" | 0.759" | 0.884" | 1.134" | 1.384" |
| 18g 0.049" |
0.402" | 0.527" | 0.652" | 0.777" | 0.902" | 1.152" | 1.402" |
| 19g 0.042" |
0.416" | 0.541" | 0.666" | 0.791" | 0.916" | 1.166" | 1.416" |
| 20g 0.035" |
0.430" | 0.555" | 0.680" | 0.805" | 0.930" | 1.180" | 1.430" |
| 22g 0.028" |
0.444" | 0.569" | 0.694" | 0.819" | 0.944" | 1.194" | 1.444" |
