G3/4 vs R3/4: specs compared
Updated 05 September 2026.
3
specs differ
G3/4 and R3/4 differ on 3 specs: designation, thread form, seals on.
| Spec | G3/4 | R3/4 |
|---|---|---|
| Designation | G3/4 | R3/4 |
| Major diameter | 26.441 mm | 26.441 mm |
| Threads per inch / pitch | 14 | 14 |
| Thread form | parallel, 55 degree | tapered, 55 degree |
| Seals on | flat washer or bonded seal on the face | on the thread flanks with PTFE tape or paste |
Questions and answers
How do G3/4 and R3/4 compare?
G3/4 and R3/4 differ on 3 specs: designation, thread form, seals on.