Product Description
Backing Block for 3/4 & 1 SeacocksFeatures: Each size fits multiple seacock sizesPress threaded brass inserts into the hull side of the backing block into the holes that match the seacock flangeRigid 1/2 thickness provides secure installation but is flexible enough to conform to minor hull curvatureWill not swell or absorb moistureMade from an environmentally friendly PVC foam specially formulated for marine applications