Groco BB Backing Block For Flanged Seacock

Description

Flanged seacock installation is improved with the use of a backing block between the valve flange and the hull.

Individual Size

• Length: 5.3 (Inch)
• Width: 5.3 (Inch)
• Height: 0.5 (Inch)
• Weight: 0.4 (Pound)

Additional Information

• 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
• Made from an environmentally friendly PVC foam specially formulated for marine applications

• Fits with: 1-1/4″ & 1-1/2″ Seacocks
• Size: 5.38″ Dia. w/ 5/16″-18 Threads