Flushmaster 2-Outlet 12 ft Outboard Flush System

The Flushmaster automated flushing system is configured for a two-engine installation and includes 12 ft outlet hoses. Instead of moving one garden hose from engine to engine, the controller sends freshwater through each connected motor in sequence. A single START command begins the cycle, and the unit closes the water flow automatically when the programmed flush is finished. This 2-outlet version gives twin-engine installations enough hose to route around larger swim platforms or aft equipment, making regular post-trip engine care easier to fit into the normal docking routine.

The controller operates from three AA batteries and does not need to be hardwired into the boat. Freshwater can come from a dock spigot, garden hose, or suitable plumbing connection, so the system can be used at a marina, driveway, or storage yard. Its enclosure carries an IP67 waterproof certification for wet marine service. The longer hoses can help keep the controller on a dry, accessible surface instead of hanging near the engines, while the 12 ft outlet hoses still leave enough slack for normal engine spacing and movement during setup.

This kit is intended for compatible four-stroke outboards that provide factory flushing connections. Setup consists of loading the batteries, attaching all 2 outlet hoses to the controller, connecting the freshwater supply, and routing the 12 ft hoses to the engine flush points. After the plumbing is connected, the controller handles the sequence without requiring the operator to remain at the transom and switch hoses manually. The package includes the Flushmaster device, three AA batteries, 2 outlet hoses, hose clamps, a screwdriver, instructions, and warranty information.

• Sequential operation services multiple outboards from one freshwater connection
• Automatic shutoff stops flow when the programmed cycle is complete
• Battery-powered controller remains portable and does not require vessel wiring
• Compatible with common dockside and household freshwater sources
• Installation hardware and operating documentation are included

Stage the 2-outlet controller where all 12 ft hoses can reach their engines without kinks, hot surfaces, or interference with steering hardware. A clean installation also makes future inspection and service easier because the connections remain accessible and organized. For related products and compatible marine hardware, browse more Plumbing Valves & Accessories.