Groco Sea Cock Backing Block Size:2''2.5'' and sealer comprise the components

and sealer comprise the components of our three step process designed to clean

Brass hose fittings are durable and rust resistant

� With a single set of AA Lithium�batteries

Start with a Fusion MS-RA770 or MS-RA670 touchscreen marine receiver

Groco Sea Cock Backing Block Size:2''2.5'' and sealer comprise the componentsBacking Block for 2" & 2 1 2" 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