Hull grommet made of brass. Similar properties to bronze in terms of durability and service life in fresh, brackish and salt water.
| Product number | Outer diameter | Spiral | Mounting hole |
| 4670 | R15 | 1/2" | 21mm |
| 4672 | R20 | 3/4" | 26mm |
| 4673 | R25 | 1" | 34mm |
| 4674 | R32 | 1 1/4" | 42mm |
| 4675 | R40 | 1 1/2" | 48mm |
Hull grommet made of brass. Similar properties to bronze in terms of durability and service life in fresh, brackish and salt water.
| Product number | Outer diameter | Spiral | Mounting hole |
| 4670 | R15 | 1/2" | 21mm |
| 4672 | R20 | 3/4" | 26mm |
| 4673 | R25 | 1" | 34mm |
| 4674 | R32 | 1 1/4" | 42mm |
| 4675 | R40 | 1 1/2" | 48mm |