MFL vs Sanke G coupler (Grundy) (type G: specs compared
Updated 05 September 2026.
5
specs differ
MFL and Sanke G coupler (Grundy) (type G differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.
| Spec | MFL | Sanke G coupler (Grundy) (type G |
|---|---|---|
| Designation | 1/4" MFL (7/16"-20 UNF) | type G, Grundy |
| Size / thread | 7/16"-20 UNF male thread, 45 degree flare seat | 5/8" BSP beer and gas ports, Grundy probe |
| Fitting form | SAE 45 degree flare, male | single-probe keg coupler |
| Seals on | metal 45 degree flare face, never PTFE tape | flat washer on each threaded port |
| Rating / role | the homebrew flare standard on regulators, manifolds and disconnect tails | the British Grundy standard |
Questions and answers
How do MFL and Sanke G coupler (Grundy) (type G compare?
MFL and Sanke G coupler (Grundy) (type G differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.