Specification of Plastic Plugs for 1-4/28 or M6 Threaded Flat-bottom Ports
| Model No. | Material | Color | Male Thread | Pressure/ Rating Room Temp (psi /MPa) |
| WDD-28-P | PP (Medical Grade) | Natural PP | 1/4-28UNF | ≥ 145/1.0 |
| WDD-28-E | PTFE (Medical Grade) | Natural PTFE | ||
| WDD-06-P | PP (Medical Grade) | Natural PP | M6 | |
| WDD-06-E | PTFE (Medical Grade) | Natural PTFE |

