3/8″ Male BSP x 3/8″ M BSP. Internally threaded M8. Used in:
| MANUFACTURE | MODEL |
| NUOVA SIMONELLI | APPIA |
| NUOVA SIMONELLI | APPIA COMPACT – AURELIA – AURELIAII – MAC2000 |
| NUOVA SIMONELLI | PREMIER – PROGRAMVIP |
| VICTORIA ARDUINO | ADONIS |
| VICTORIA ARDUINO | ATHENA – VENUS CENTURY |
