![GROCO Backing Block f\/3\/4" 1" Seacocks [BB-1]](https://cdn11.bigcommerce.com/s-2c43f/images/stencil/1280x1280/products/9624/13246/72847XL__91114.1713907888.jpg?c=2 "GROCO Backing Block f\/3\/4\" 1\" Seacocks [BB-1]")
Backing Block for 3/4" & 1" 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: 0.2 lbs
- UPC: 742985169845
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![GROCO 1-1\/4" Safety Seacock w\/1" Side Port [SBV-1250-P]](https://cdn11.bigcommerce.com/s-2c43f/images/stencil/500x659/products/10328/14175/75371XL__82322.1713909989.jpg?c=2 "GROCO 1-1\/4\" Safety Seacock w\/1\" Side Port [SBV-1250-P]")
![GROCO 1-1\/4" Bronze Tri-Flanged Ball Valve\/Seacock [FBV-1250]](https://cdn11.bigcommerce.com/s-2c43f/images/stencil/500x659/products/10001/13721/74387XL__06151.1713908998.jpg?c=2 "GROCO 1-1\/4\" Bronze Tri-Flanged Ball Valve\/Seacock [FBV-1250]")
![GROCO 1-1\/4" Bronze Electric Flanged Seacock - 12V [FBVE-1250 12V]](https://cdn11.bigcommerce.com/s-2c43f/images/stencil/500x659/products/9989/13705/74374XL__15627.1713908952.jpg?c=2 "GROCO 1-1\/4\" Bronze Electric Flanged Seacock - 12V [FBVE-1250 12V]")
![GROCO 1-1\/2" Safety Seacock w\/1-1\/4" Side Port [SBV-1500-P]](https://cdn11.bigcommerce.com/s-2c43f/images/stencil/500x659/products/10329/14176/75372XL__00372.1713909992.jpg?c=2 "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-2c43f/images/stencil/500x659/products/9621/13243/72844XL__74839.1713907880.jpg?c=2 "GROCO 1-1\/2\" Bronze Flanged Full Flow Seacock [BV-1500]")
![GROCO 1" Bronze Flanged Full Flow Seacock [BV-1000]](https://cdn11.bigcommerce.com/s-2c43f/images/stencil/500x659/products/9619/13241/72842XL__55996.1713907874.jpg?c=2 "GROCO 1\" Bronze Flanged Full Flow Seacock [BV-1000]")