Groco Backing Block Fits Seacock 750 & 1000 Shore Power Cable Replacement Fittings Tinned copper gives the least

Tinned copper gives the least electrical resistance but the most corrosion protection

The 2-stage ball bearing system provides consistent performance over the full load range

ROUND PIN CHAIN SHACKLE 5/8""""""

Severely stained or dirty surfaces may require second application

Groco Backing Block Fits Seacock 750 & 1000 Shore Power Cable Replacement Fittings Tinned copper gives the leastBB SERIES BACKING BLOCKS 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. Rigid 1 2" thickness provides secure installation but is flexible enough to conform to minor hull curvature. Will not swell or absorb moisture.