BB-4A
Backing Block
Features:
- Each size fits multiple seacock sizes.
- Press threaded inserts into the hull side of the backing block into the holes that match the seacock flange.
- Rigid 1/2" thickness provides secure installation but is flexible enough to conform to minor hull curvature.
- Will not swell or absorb moisture.
Additional Information
| Fits Seacock Sizes | 4000 |
|---|---|
| Diameter | 9.5 |
| Insert Threads | 1/2"-13 |