GROCO 1/2-Inch 4-Port Bronze Tank Selector Valve

The GROCO TS-400 four-port selector valve lets one control choose between two tanks, combine both tanks, or shut the circuit off. It can be used with compatible fuel or water systems where a single manually operated valve is preferred over several separate shutoffs. The handle provides four defined positions: Tank 1, Tank 2, both tanks together, and off. An audible click at each position gives the operator tactile confirmation as the selection is changed.

The TS-400 is built for through-panel mounting, keeping the operator-facing handle accessible while the plumbing remains behind the panel. Its internal passage maintains full flow for the valve size, and the bronze body is intended for marine service. Combining the selection functions in one control can simplify hose routing and make tank changeover more intuitive at the helm or service panel. The valve may be purchased on its own or used as part of GROCO's TS-350-T selector kit.

• Selects Tank 1, Tank 2, both tanks, or off
• Through-panel mounting design
• Audible detent at each handle position
• Suitable for compatible fuel or water systems

Before mounting the TS-400, label the hose runs and dry-fit all four ports so each tank path matches the intended handle position. Keep bends gentle near the valve and support the hoses independently so the panel body is not carrying their weight. After connection, test every selector position and verify that the off position fully isolates flow before relying on the valve underway. For additional selector valves and marine plumbing controls, browse Plumbing Valves & Accessories.