Post Cornelius PIN vs Duo8: specs compared
Updated 05 September 2026.
6
specs differ
Post Cornelius PIN and Duo8 differ on 6 specs: designation, size / thread, fitting form, seals on, rating / role, tube od.
| Spec | Post Cornelius PIN | Duo8 |
|---|---|---|
| Designation | 19/32"-18 UNF (both posts) | 8 mm (5/16") OD |
| Size / thread | 19/32"-18 UNF (about 15.1 mm major), gas and liquid the same | 8 mm (5/16") |
| Fitting form | UNF male post thread | push-in collet, metric |
| Seals on | poppet inside the post; post base O-ring seals to the keg lid | double EPDM O-ring on the tube outer wall |
| Rating / role | Cornelius pin-lock corny kegs; the disconnect locates on pins, not the thread | fitting rated to 100 psi; EVABarrier tube burst over 300 psi at 25 C |
| Tube OD | 8 mm |
Questions and answers
How do Post Cornelius PIN and Duo8 compare?
Post Cornelius PIN and Duo8 differ on 6 specs: designation, size / thread, fitting form, seals on, rating / role, tube od.