Groco Bronze Full-Flow Tri-Flange Seacock Seacocks

The Groco Bronze Full-Flow Tri-Flange Seacock is a marine through-hull shutoff valve (also called a seacock or through-hull ball valve) for controlling water flow in and out of a boat's hull. It suits raw water intakes, cooling systems, washdown pumps, livewells, and discharge lines.

Key Features:

• Bronze construction: Marine-grade bronze resists corrosion in saltwater and freshwater.
• Full-flow design: The ball valve opens fully, so flow isn't restricted and water moves freely through the line.
• Tri-flange base: The three-bolt mounting flange spreads load across the hull fitting. This gives a secure, stable installation.
• Quarter-turn handle: You can open or close the valve quickly, and the handle position shows whether the valve is open or closed.
• Hull-mounted design: The seacock is built to sit directly on a through-hull fitting. It gives a dependable shutoff point at the hull penetration.

Groco is a well-known name in marine plumbing hardware. Its seacocks are built for long service life aboard sailboats, powerboats, and commercial vessels. Fit a seacock on every through-hull opening so you can shut off water quickly for maintenance or in an emergency.