| Tube Size X Thread Inch | 10-32 UNF Thread | 1/8" NPT | 1/4" NPT | 3/8" NPT | 1/2" NPT |
| 5/32" OD | PX5/32-U10U | PX5/32-N1U | PX5/32-N2U | ||
| 3/16" OD | PX3/16-U10U | PX3/16-N1U | PX3/16-N2U | PX3/16-N3U | |
| 1/4" OD | PX1/4-U10U | PX1/4-N1U | PX1/4-N2U | PX1/4-N3U |
|
| 3/8" OD | PX3/8-N2U | PX3/8-N3U | PX3/8-N4U | ||
| 1/2" OD | PX1/2-N2U | PX1/2-N3U | PX1/2-N4U | ||
| Tube Size X Thread Metric | M5 X .8 Thread | R1/8 | R1/4 | R3/8 | R1/2 |
| 4MM | PX4-M5 | PX4-01 | PX4-02 | ||
| 6MM | PX6-M5 | PX6-01 | PX6-02 | PX6-03 | |
| 8MM | PX8-01 | PX8-02 | PX8-03 | ||
| 10MM | PX10-02 | PX10-03 | PX10-04 | ||
| 12MM | PX12-02 | PX12-03 | PX12-04 |