Groco Seacock Backing Blocks

Sale price $82.87 Regular price $90.89

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

Shopify secure badge