| - | Features |
|---|---|
| #1 | Application - gas, water and oil |
| #2 | Male national pipe taper (NPT) threads on both ends for connecting female threaded pipes and fittings |
| #3 | Threads are right-hand on both ends |
| #4 | Threaded on both ends with standard NPT tapered threads |
| #5 | Standard welded |