Groco Bronze Tri-Flanged Ball Valve Seacock - Available in 1" to 1-1/2"

The Groco Bronze Tri-Flanged Ball Valve Seacock is a solid bronze, full-flow shutoff valve designed to mount directly to a below-the-waterline thru-hull fitting. Its tri-flanged, three-port body bolts securely to the hull-mounted thru-hull and accepts a hose barb or fitting on the outlet side, giving you a reliable, corrosion-resistant way to isolate seawater intake or discharge lines for engine cooling, head systems, washdowns, livewells, and other below-waterline plumbing. Bronze construction resists the corrosive effects of continuous saltwater and freshwater immersion far better than standard brass or plastic valves, making this seacock a trusted choice for offshore and coastal boats alike.

Each valve uses NPT threaded connections and a chrome/stainless exterior finish for a clean, durable installed appearance. The full-flow ball design means minimal restriction to water flow when open, and a positive quarter-turn shutoff when closed. This line is available in three pipe sizes to match the thru-hull fitting already installed on your vessel or specified in your plumbing plan.

Specifications

• Brand: Groco
• Material: Bronze
• Valve Type: Ball Valve (tri-flanged, 3-port)
• Connection Type: National Pipe Tapered (NPT) inlet, flanged outlet
• Exterior Finish: Chrome, Stainless Steel
• Sizes: 1 Inch, 1-1/4 Inch, 1-1/2 Inch

Sizes & Options

This seacock is sold by pipe size: 1 Inch (FBV-1000), 1-1/4 Inch (FBV-1250), and 1-1/2 Inch (FBV-1500). Match your selection to the outside diameter of the thru-hull fitting already installed, or to the size specified in your boat's plumbing schematic. Installing an undersized valve will restrict flow and create unnecessary pressure drop, while an oversized valve will not thread onto the thru-hull. If you are unsure of your existing thru-hull size, measure the threaded fitting directly or consult your boat's builder documentation before ordering.