CO2 88G vs Ball-lock liquid disconnect (MFL) (black QD: specs compared
Updated 05 September 2026.
5
specs differ
CO2 88G and Ball-lock liquid disconnect (MFL) (black QD differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.
| Spec | CO2 88G | Ball-lock liquid disconnect (MFL) (black QD |
|---|---|---|
| Designation | 3/8"-24 UNF (soda-maker 88g) | black QD, 1/4" MFL tail |
| Size / thread | 3/8"-24 UNF external thread, 88 gram cartridge | snaps over the liquid post; 1/4" MFL (7/16-20 UNF) tail |
| Fitting form | larger threaded disposable CO2 cylinder | snap-on liquid quick disconnect |
| Seals on | a pierced or valved seat in the holder against the cartridge neck | O-ring over the post shoulder; flare face at the MFL tail |
| Rating / role | single-use 88 gram cartridge for soda makers and portable dispensers | the liquid-side ball-lock disconnect, keyed to the liquid post and usually black |
Questions and answers
How do CO2 88G and Ball-lock liquid disconnect (MFL) (black QD compare?
CO2 88G and Ball-lock liquid disconnect (MFL) (black QD differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.