Backing 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:
- Construction: Bronze
- Box Dimensions: 1″H x 7″W x 9″L WT: 0.25 lbs
- UPC: 742985170148

![GROCO Backing Block f/1-1/4" 1-1/2" Seacocks [BB-2]](https://www.fishgearhome.com/wp-content/uploads/2025/01/72848XL.jpg)




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