16 mm (0.63" OD) vs 4/7 mm (4 mm ID x 7 mm OD): specs compared
Updated 05 September 2026.
6
specs differ
16 mm (0.63" OD) and 4/7 mm (4 mm ID x 7 mm OD) differ on 6 specs: outer diameter, inner diameter, barb fits id, role, working pressure, fitting type.
| Spec | 16 mm (0.63" OD) | 4/7 mm (4 mm ID x 7 mm OD) |
|---|---|---|
| Outer diameter | 16 mm (0.63 inch) | 7 mm |
| Inner diameter | about 13.6 mm | 4 mm |
| Barb fits ID | 16 mm barb, 0.63 inch outer | |
| Role | the main supply line in most garden drip kits | |
| Working pressure | 0.2 to 1 MPa (about 2 to 10 bar) | |
| Fitting type | push-in barb sized to the 4 mm bore |
Questions and answers
How do 16 mm (0.63" OD) and 4/7 mm (4 mm ID x 7 mm OD) compare?
16 mm (0.63" OD) and 4/7 mm (4 mm ID x 7 mm OD) differ on 6 specs: outer diameter, inner diameter, barb fits id, role, working pressure, fitting type.