![GROCO Backing Block f\/1-1\/4" 1-1\/2" Seacocks [BB-2]](https://cdn11.bigcommerce.com/s-dbaeft6mdz/images/stencil/1280x1280/products/71045/72144/72848XL__48861.1735974749.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-dbaeft6mdz/images/stencil/500x659/products/71045/72144/72848XL__48861.1735974749.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-dbaeft6mdz/images/stencil/500x659/products/71409/72587/74173XL__10003.1735975696.jpg?c=1 "GROCO Backing Block f\/2\" 2-1\/2\" Seacocks [BB-3]")
![GROCO Backing Block f\/3\/4" 1" Seacocks [BB-1]](https://cdn11.bigcommerce.com/s-dbaeft6mdz/images/stencil/500x659/products/71044/72143/72847XL__98137.1735974746.jpg?c=1 "GROCO Backing Block f\/3\/4\" 1\" Seacocks [BB-1]")
![GROCO 1-1\/2" Safety Seacock w\/1-1\/4" Side Port [SBV-1500-P]](https://cdn11.bigcommerce.com/s-dbaeft6mdz/images/stencil/500x659/products/71871/73191/75372XL__13920.1735976934.jpg?c=1 "GROCO 1-1\/2\" Safety Seacock w\/1-1\/4\" Side Port [SBV-1500-P]")
![GROCO 2" Safety Seacock w\/1-1\/2" Side Port [SBV-2000-P]](https://cdn11.bigcommerce.com/s-dbaeft6mdz/images/stencil/500x659/products/71872/73192/75373XL__50184.1735976937.jpg?c=1 "GROCO 2\" Safety Seacock w\/1-1\/2\" Side Port [SBV-2000-P]")
![GROCO 1-1\/2" Bronze Flanged Full Flow Seacock [BV-1500]](https://cdn11.bigcommerce.com/s-dbaeft6mdz/images/stencil/500x659/products/71042/72141/72844XL__19498.1735974741.jpg?c=1 "GROCO 1-1\/2\" Bronze Flanged Full Flow Seacock [BV-1500]")