![GROCO Backing Block f\/3\/4" 1" Seacocks [BB-1]](https://cdn11.bigcommerce.com/s-2vfwgyus8b/images/stencil/1280x1280/products/48834/89385/72847XL__81187.1642112656.jpg?c=1 "GROCO Backing Block f\/3\/4\" 1\" Seacocks [BB-1]")
![GROCO Backing Block f\/3\/4" 1" Seacocks [BB-1]](https://cdn11.bigcommerce.com/s-2vfwgyus8b/images/stencil/500x659/products/48834/89385/72847XL__81187.1642112656.jpg?c=1 "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
- MPN:
- BB-1
![GROCO Backing Block f\/1-1\/4" 1-1\/2" Seacocks [BB-2]](https://cdn11.bigcommerce.com/s-2vfwgyus8b/images/stencil/500x659/products/48835/89386/72848XL__68662.1642112658.jpg?c=1 "GROCO Backing Block f\/1-1\/4\" 1-1\/2\" Seacocks [BB-2]")
![GROCO Backing Block f\/2" 2-1\/2" Seacocks [BB-3]](https://cdn11.bigcommerce.com/s-2vfwgyus8b/images/stencil/500x659/products/49438/90223/74173XL__44779.1642114017.jpg?c=1 "GROCO Backing Block f\/2\" 2-1\/2\" Seacocks [BB-3]")
![GROCO 1-1\/4" Bronze Flanged Full Flow Seacock [BV-1250]](https://cdn11.bigcommerce.com/s-2vfwgyus8b/images/stencil/500x659/products/48831/89382/72843XL__62154.1642112649.jpg?c=1 "GROCO 1-1\/4\" Bronze Flanged Full Flow Seacock [BV-1250]")
![GROCO 1-1\/4" Safety Seacock w\/1" Side Port [SBV-1250-P]](https://cdn11.bigcommerce.com/s-2vfwgyus8b/images/stencil/500x659/products/66156/114046/75371XL__73772.1670614943.jpg?c=1 "GROCO 1-1\/4\" Safety Seacock w\/1\" Side Port [SBV-1250-P]")