GU Thread Adapter vs GAS Shutoff: specs compared
Updated 05 September 2026.
5
specs differ
GU Thread Adapter and GAS Shutoff differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.
| Spec | GU Thread Adapter | GAS Shutoff |
|---|---|---|
| Designation | 13/16"-14 to 7/8"-14 | 1/4" MPT x 1/4" MFL |
| Size / thread | 1/2" BSP (13/16"-14) one end, 5/8" BSP (7/8"-14) the other | 1/4" MPT (1/4-18 NPT) one end, 1/4" MFL (7/16-20 UNF) the other, often with a check valve |
| Fitting form | port thread adapter | quarter-turn ball shutoff |
| Seals on | flat washer on each threaded face | NPT end taped on the thread; MFL end on the flare face |
| Rating / role | converts the 1/2" BSP (13/16"-14) beer port some G and U couplers carry to the 5/8" BSP (7/8"-14) standard | shuts a single gas line without touching the regulator; some carry a check valve too |
Questions and answers
How do GU Thread Adapter and GAS Shutoff compare?
GU Thread Adapter and GAS Shutoff differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.