| Series | 1XL |
| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | Watts Regulator Company | WAT 0091507 | 1/2 1XL 75-210 0091507 |
| | Watts Regulator Company | WAT 0004494 | 1/2 1XL-150210 0004494 |
| | Watts Regulator Company | WAT 0004495 | 1/2 1XL-8-125210 0004495 |
| | Watts Regulator Company | WAT 0004431 | 1/2 1XL-100 0004431 |
| | Watts Regulator Company | WAT 0004434 | 1/2 1XL-125210 0004434 |
| | Watts Regulator Company | WAT 0004497 | 1/2 1XL- 8-150210 0004497 |
