Bigger pump, bigger line, same problem — the barb's not holding. At 1 1/4 inch you're moving serious volume and a loose fitting means water everywhere it shouldn't be. This Jaycar threaded skin fitting gives you a locked mechanical connection on your 1 1/4-inch BSP port. 30mm internal diameter keeps that flow unimpeded. Strip the barb, thread it on, torque it down. Your bilge stays dry
| brand | Jaycar |
| thread_size | 1 1/4 inch BSP |
| internal_diameter | 30 mm |
| type | Threaded only, no barb |
| application | Marine water intake / bilge pump discharge |
| category | Electronics & Components > Automotive & Outdoor Electronics |