Product Details
Retail price is shown. * Add this item to the Shopping Cart to see your reduced price.
Product Description: Groco BB Backing Block For Flanged Seacock Flanged seacock installation is improved with the use of a backing block between the valve flange and the hull.
Product Description: Groco BB Backing Block For Flanged Seacock Flanged seacock installation is improved with the use of a backing block between the valve flange and the hull.
- 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
- 1/2" thickness is rigid enough for a secure installation but flexible enough to conform to minor hull curvature
- Will not swell or absorb moisture
