Groco 1-1/4" Full-Flow Bronze Seacock (FBV-1250). Premium C83600 bronze flanged ball valve with reversible handle & grease zerk for reliable marine plumbing. Read more..
When it comes to below-the-waterline plumbing, compromise isn't an option. The Groco 1-1/4" Full-Flow Flanged Seacock (Model FBV-1250) is engineered to provide absolute peace of mind, functioning as an unyielding firewall between your bilge and the open ocean. Cast from robust C83600 marine bronze, it effortlessly handles continuous exposure to harsh saltwater without zinc leaching or corroding.
What sets the FBV series apart is its user-focused design. Unlike old-school seacocks that require brute strength to operate or impossible gymnastics to fit into tight bilges, the FBV-1250 features a patented field-reversible handle. This allows you to choose whether the valve closes clockwise or counter-clockwise to clear nearby stringers or hoses.
Additionally, the handle is molded with a integrated square hole engineered to fit a standard socket extension or ratchet—giving you perfect mechanical leverage to safely operate the valve if it is tucked deep into an inaccessible engine locker. For extended service life, Groco has integrated a built-in grease zerk fitting and drain plug right into the body. This lets you pump specialized valve lubricant directly into the ball assembly while the vessel is in the water, ensuring smooth, leak-free operation season after season.
Unrestricted Full Flow: True 1-1/4" internal diameter ensures maximum water volume with zero restriction, making it ideal for engine cooling or heavy-duty livewells.
Patented Selectable Handle Rotation: Easily adjust the set-screw beneath the handle to change the closed-position orientation to fit your specific bilge layout.
Ratchet-Ready Handle: Features a standard square cut-out in the handle to accept a socket wrench extension for effortless reach and operation in tight spaces.
Built-In Service Zerk & Drain: Includes an integrated grease zerk fitting to inject lubricant between the ball and PTFE seals, alongside an accessible drain plug for easy winterization.
Universal Tri-Flange Pattern: Built with a standardized triangular base and bolt configuration that drops directly into most popular backing blocks for trouble-free retrofitting.
In-Water Serviceability: Premium PTFE seats and seals offer a liquid-tight compression barrier that can be maintained while the valve is installed.
| Attribute | Specification |
| Brand | Groco (Gross Mechanical Laboratories) |
| Model Number | FBV-1250 |
| Inlet Thread (Bottom) | 1-1/4" NPS (Straight Mechanical Thread to match thru-hull) |
| Outlet Thread (Top) | 1-1/4" NPT (Tapered Pipe Thread to match hose adapter) |
| Body Material | C83600 High-Tensile Marine Bronze |
| Ball & Hardware Material | Chrome-Plated Solid Brass Ball / Stainless Steel Handle |
| Seals & Seats | Marine-Grade PTFE (Teflon) |
| Safety Features | Integrated bonding screw attachment on the base |
| Overall Length (A) | 7.12" (180.8mm) |
Groco 1-1/4" Full-Flow Bronze Seacock (FBV-1250). Premium C83600 bronze flanged ball valve with reve..
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