คำอธิบาย
| Model | male X male (PT) |
| ST3220x4x2 | 1/4″x1/8″ |
| ST3220x6x2 | 3/8″x1/8″ |
| ST3220x6x4 | 3/8″x1/4″ |
| ST3220x8x2 | 1/2″x1/8″ |
| ST3220x8x4 | 1/2″x1/4″ |
| ST3220x12x4 | 1/2″x3/8″ |
| ST3220x12x6 | 3/4″x1/4″ |
| ST3220x12x8 | 3/4″x3/8″ |
| ST3220x16x6 | 3/4″x1/2″ |
| ST3220x16x8 | 1″x3/8″ |
| ST3220x16x12 | 1″x3/4″ |
| ST3220x40x16 | 1 1/2″x1″ |
ST3220x50x40 | 2″x1 1/2″ |