GROCO Backing Block f/3/4" 1" Seacocks [BB-1] Marine Plumbing & Ventilation | Hot Water Heaters For longer distances

For longer distances

Direct jet allows water stream to rinse and flush RV sewer systems

Use the optional converter module (Cat

Fuse Strip C30

type C100 including cover

GROCO Backing Block f/3/4" 1" Seacocks [BB-1] Marine Plumbing & Ventilation | Hot Water Heaters For longer distancesBacking Block for 3 4" & 1" 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 Specifications: