20 mm barb (to 1/2" or 3/4" BSP) vs 32 mm barb (to 1" or 1-1/4" BSP): specs compared
Updated 05 September 2026.
3
specs differ
20 mm barb (to 1/2" or 3/4" BSP) and 32 mm barb (to 1" or 1-1/4" BSP) differ on 3 specs: barb size, thread options, use.
| Spec | 20 mm barb (to 1/2" or 3/4" BSP) | 32 mm barb (to 1" or 1-1/4" BSP) |
|---|---|---|
| Barb size | 20 mm hose bore | 32 mm hose bore (1 1/4 inch) |
| Thread options | 1/2 inch BSP or 3/4 inch BSP | 1 inch BSP or 1 1/4 inch BSP |
| Seals with | a Jubilee clip over the barb | a Jubilee clip over the barb |
| Use | small pond pumps, filters and water features | larger pumps and gravity-fed filters |
Questions and answers
How do 20 mm barb (to 1/2" or 3/4" BSP) and 32 mm barb (to 1" or 1-1/4" BSP) compare?
20 mm barb (to 1/2" or 3/4" BSP) and 32 mm barb (to 1" or 1-1/4" BSP) differ on 3 specs: barb size, thread options, use.