Smarter, Safer, Hands-Free Flushing for Triple and Quad Outboards

The FLUSHMASTER is a portable, marine-grade device designed to make flushing your outboard motors easier and more efficient. It saves time and water while ensuring proper maintenance for your engines.

With just a push of a button, the FLUSHMASTER flushes each motor one at a time for a set duration, automatically shutting off when complete and blocking water flow. This means you don’t have to return to the device or disconnect hoses until you’re ready for your next boating trip.

You can connect the FLUSHMASTER directly to a water spigot, attach it to a water hose, or hang it on a piling. For best results, we recommend connecting it directly to the nearest spigot and choosing a hose length that fits your needs.

Key Features

• Protects Your Engines from Costly Salt Damage
  Salt and mineral deposits can corrode internal cooling passages if not flushed after use - especially in saltwater. Flushmaster ensures complete, consistent flushing, prolonging engine life.
• Automates Sequential Flushing
  Flushing multiple engines? Flushmaster does them one at a time, not simultaneously — just like the manufacturers recommend. This allows full water pressure to each engine for a deeper, more effective flush.
• Built-In 15-Minute Timer (Adjustable)
  No need to set a phone alarm or watch the clock. The system runs the correct time, then automatically stops and blocks water - eliminating over-flushing, wasted water and time. Set it, forget it, and enjoy  peace of mind knowing each engine gets the proper flush pressure and duration.
• Plug-and-Play Simplicity
  No hardwiring, apps, or plumbing - just attach hoses, push a button, and walk away.
  Runs on 3 AA batteries (included), with 6 – 12 month life depending on use. Hard plumb it at the end of your dock or use it portably with a garden hose.
• Compact & Rugged Design
  Fully waterproof housing (IP67) with marine-grade materials. Designed to be stored onboard or dockside. Weighs just 2lbs, with a compact 8″ × 8″ × 4″ footprint.
• Works with Any Flush Port or Quick Connect Fitting
  Compatible with OEM flush ports and aftermarket quick-connect fittings (e.g., Mercury, Suzuki, Yamaha, etc.).

Kit Includes

• Flushmaster 2‑Outlet Controller
• (2) 12′ Marine-Grade Hose Kits
• Hose Clamps + Mini Screwdriver
• 3 AA Batteries
• Installation Guide + 1-Year Warranty

Perfect For

• Recreational Boaters – Easy maintenance after every trip saving tremendous time
• Charter Captains – Save time at the end of your trip while maintaining engine longevity
• Multi-Engine Owners – Automate engine care for each engine without wasting time
• Marine Technicians – Faster, more consistent service
• Seasonal Boaters – Prevent corrosion during storage
• Freshwater Boaters – Eliminate invasive species and algae growth inside engine

Compatibility

The FLUSHMASTER is compatible with Mercury, Yamaha, Suzuki, Honda, and other four-stroke outboards with standard garden-size flush ports. Ensure you select the optimal hose length to accommodate your application.

Flush smarter. Protect longer. Get the hands-free flush system built by boaters, for boaters.