![GROCO Backing Block f/1-1/4" 1-1/2" Seacocks [BB-2] - shopbulluna.com](http://www.shopbulluna.com/cdn/shop/products/72848XL.jpg?v=1618278251&width=1080)
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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