GROCO 3/4" Bronze Flanged Full Flow Seacock

The GROCO 3/4" Bronze Flanged Full Flow Seacock (Model BV-750) is a marine-grade through-hull valve engineered for saltwater systems where corrosion resistance and unobstructed flow are mission-critical. Cast from bronze, this seacock provides the durability required in offshore and coastal marine applications where exposure to salt air and seawater demands materials that won't degrade under constant environmental stress.

The 3/4" port size delivers full flow capability without turbulence or pressure drop, essential for bilge systems, engine cooling circuits, and through-hull intake applications where efficiency matters. The tri-flange base and standardized mounting pattern simplify installation and retrofit compatibility with most major seacock brands, reducing downtime during vessel maintenance or upgrades. A selectable handle rotation feature allows customized orientation to match existing control layouts. The square-hole handle design accepts standard ratchets, enabling secure operation even when space around the valve is restricted—a practical advantage in cramped engine compartments and below-deck installations.

This seacock suits marine operators who prioritize reliable through-hull isolation and system management on fishing vessels, cruising sailboats, and commercial marine platforms. Bronze construction and low-maintenance design reduce lifecycle costs and minimize emergency repairs at sea. The integral grease zerk and drain provisions keep the valve operating smoothly across years of saltwater service.

Marine seacocks are regulated through-hull fittings that require corrosion-resistant materials and reliable closure for safety and environmental compliance. GROCO seacocks are recognized throughout the boating industry for conservative engineering and longevity in harsh marine environments. The BV-750 represents the brand's established standard for mid-range through-hull applications where bronze and bronze ball construction provide the balance between cost and durability.