![GROCO Backing Block f\/1-1\/4" 1-1\/2" Seacocks [BB-2]](https://cdn11.bigcommerce.com/s-kfzsxlhrps/images/stencil/1280x1280/products/12048/14340/72848XL__80818.1715741201.jpg?c=1 "GROCO Backing Block f\/1-1\/4\" 1-1\/2\" Seacocks [BB-2]")
![GROCO Backing Block f\/1-1\/4" 1-1\/2" Seacocks [BB-2]](https://cdn11.bigcommerce.com/s-kfzsxlhrps/images/stencil/500x659/products/12048/14340/72848XL__80818.1715741201.jpg?c=1 "GROCO Backing Block f\/1-1\/4\" 1-1\/2\" Seacocks [BB-2]")
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\/2" 2-1\/2" Seacocks [BB-3]](https://cdn11.bigcommerce.com/s-kfzsxlhrps/images/stencil/500x659/products/12485/14895/74173XL__61531.1715742184.jpg?c=1 "GROCO Backing Block f\/2\" 2-1\/2\" Seacocks [BB-3]")
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![GROCO 1-1\/2" Safety Seacock w\/1-1\/4" Side Port [SBV-1500-P]](https://cdn11.bigcommerce.com/s-kfzsxlhrps/images/stencil/500x659/products/13101/15760/75372XL__42780.1715743669.jpg?c=1 "GROCO 1-1\/2\" Safety Seacock w\/1-1\/4\" Side Port [SBV-1500-P]")
![GROCO 1-1\/2" Bronze Flanged Full Flow Seacock [BV-1500]](https://cdn11.bigcommerce.com/s-kfzsxlhrps/images/stencil/500x659/products/12044/14336/72844XL__69760.1715741192.jpg?c=1 "GROCO 1-1\/2\" Bronze Flanged Full Flow Seacock [BV-1500]")
![GROCO 2" Safety Seacock w\/1-1\/2" Side Port [SBV-2000-P]](https://cdn11.bigcommerce.com/s-kfzsxlhrps/images/stencil/500x659/products/13102/15761/75373XL__91665.1715743671.jpg?c=1 "GROCO 2\" Safety Seacock w\/1-1\/2\" Side Port [SBV-2000-P]")