Built in stainless steel with viton seat.
Gas female threaded ends.
For the liquid to pass through it but never return or go in the opposite direction.
| Measure | Height | Length |
| 1/4" | 30 | 65 |
| 3/8" | 30 | 65 |
| 1/2" | 40 | 65 |
| 3/4" | 45 | 80 |
| 1" | 55 | 90 |
| 1 1/4" | 65 | 105 |
| 1 1/2" | 70 | 120 |
| 2" | 85 | 140 |