Groco BB-Series Backing Block
Item #:
502614
Brand:
Groco
Model #:
Multiple Models Available
List Price:
From $54.00 To $98.00
Our Price:
From $36.99 To $64.99
Please enter quantity below.

Features:
- Flanged seacock installation is improved with the use of a backing block between the valve flange and the hull
- 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
Groco TH-Series Bronze Mushroom Head Thru-Hull Fitting
Item #: 502918Select Thread Size
Material: Bronze, Retaining Nut is Not Included, Rated Above / Below Waterline
Marine UL listed
Item #: 502918
Groco FBV Series Full-Flow Flanged Ball Type Seacock
Item #: 503591Select Bottom and Top Threads
Material: Bronze
Field Reversible Handle
Item #: 503591
Groco BV Series Full Flow Ball-Type Seacock
Item #: 503592Select Bottom and Top Threads
Material: Bronze
Tri-Flange Base, Mounting Holes Match most Common Brands
Item #: 503592