Groco Bronze Full-Flow Tri-Flange Seacock Ball Valve Seacocks

The Groco bronze full-flow tri-flange seacock ball valve is a marine through-hull seacock. It gives you a dependable way to open and close hull openings for raw water intake, cooling water, washdown, and discharge. Boat owners and installers also know it as a bronze ball valve seacock or through-hull ball valve.

Key Features:

• Bronze construction: Marine-grade bronze resists corrosion in saltwater environments.
• Full-flow ball valve design: The bore is unrestricted, so water flows freely and flow loss is minimal.
• Tri-flange base: The wide mounting flange spreads load across the hull and gives you a secure, stable installation.
• Quarter-turn handle: The valve opens and closes quickly, and the handle position shows at a glance whether the valve is open or closed.
• Threaded outlet: The outlet connects to hose barbs or other plumbing fittings.

Groco is a long-established marine hardware brand known for through-hull fittings, seacocks, and strainers. This seacock line suits sailboats, powerboats, and other vessels that need a reliable shutoff at the hull. Install it with a matching through-hull fitting and follow standard marine practice for bedding and backing blocks.