GROCO Backing Block f/3/4" & 1" Seacocks
Backing Block for 3/4" & 1" Seacocks
Features:
- Each size fits multiple seacock sizes
- Press threaded brass 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
- Made from an environmentally friendly PVC foam specially formulated for marine applications
Product Specifications
| Dimensions | 9" L × 7" W × 1" H |
|---|---|
| Shipping Weight | 0.2 lb |
| Country of Origin | UNITED STATES |
| Harmonized Code | 3926.90.45.00 |

