The FLUSHMASTER is a portable, automated outboard flushing system designed to make engine care easier, cleaner, and more consistent. This 2-outlet controller includes two 20-foot marine-grade hose kits, giving maximum reach for larger boats, wide transoms, and permanent dockside setups.

With one button press, FLUSHMASTER flushes each engine individually for a timed freshwater cycle, then automatically shuts off and blocks water flow. It helps protect your engines from salt, minerals, and buildup while reducing wasted water and time.

Key Features

• Built for Demanding Conditions: Marine-grade construction and waterproof housing are made for dockside and onboard environments.
• Ready to Use Immediately: Includes batteries and two 20ft hose kits for quick setup out of the box.
• True Walk-Away Operation: Start the flush cycle and step away while the system manages timing and shutoff.
• Full-Pressure Sequential Flushing: Flushes one motor at a time so water pressure is not split between engines.
• Maximum Hose Reach: Dual 20-foot hoses are ideal for long-distance routing, larger boats, and fixed dock setups.
• Flexible System Integration: Connect through flush ports, onboard plumbing, or optional quick-connect fittings.

*Quick Connects sold separately.

Kit Includes

• (1) FLUSHMASTER 2-Outlet Controller
• (2) 20′ Marine-Grade Hose Kits
• (4) Hose Clamps + (1) Mini Screwdriver
• (3) AA Batteries
• Installation Guide + 1-Year Warranty

Perfect For

• Large Boats: Extra reach for wide transoms and larger engine layouts.
• Permanent Dockside Setups: Ideal when the controller or water source is mounted farther away.
• Twin-Outboard Owners: Automates flushing both engines without splitting pressure.
• Charter and Commercial Use: Saves time while helping maintain engines after frequent use.
• Marine Technicians: Useful for consistent flushing where longer hose routing is needed.
• Saltwater Boaters: Helps reduce corrosion risk by flushing salt and mineral deposits after use.

Compatibility

The FLUSHMASTER is compatible with Mercury, Yamaha, Suzuki, Honda, and other four-stroke outboards with standard garden-size flush ports. The 20ft hose configuration is best for maximum reach, large boats, and dockside installations.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.