GROCO Backing Block f/1-1/4" 1-1/2" Seacocks [BB-2] Cartography Features a convenient test knob

Features a convenient test knob to test pump operation

40/10 degree Beam Angles

Risists rusting pitting & corroding

UPC: 091887113822

It does not deliver high pressure

GROCO Backing Block f/1-1/4" 1-1/2" Seacocks [BB-2] Cartography Features a convenient test knobBacking Block for 1 1 4" & 1 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 Specifications: