Keykeg vs CO2 M10: specs compared
Updated 05 September 2026.
5
specs differ
Keykeg and CO2 M10 differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.
| Spec | Keykeg | CO2 M10 |
|---|---|---|
| Designation | KeyKeg / DSI head | M10 x 1 mm |
| Size / thread | 5/8" BSP beer and gas dispense ports; DSI probe for KeyKeg valves | M10 x 1 mm metric external thread |
| Fitting form | single-probe keg coupler, KeyKeg valve | small metric disposable CO2 cartridge / DIY welding CO2 |
| Seals on | flat washer on each threaded dispense port | seat in the piercer or valve against the cartridge |
| Rating / role | the coupler for one-way KeyKeg and DSI-valve kegs, common in craft and cider | the metric small-cartridge thread used on some soda and DIY CO2 sources |
Questions and answers
How do Keykeg and CO2 M10 compare?
Keykeg and CO2 M10 differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.