What is the Flushmaster system?
The Flushmaster System is not a single product. It’s a group of components designed to work together so outboard engines can be flushed properly—regardless of how or where water connects. By bridging the gap between your water source and your engines, Flushmaster ensures 100% water pressure reaches every internal cooling passage without you ever having to swap a hose.
Flushmaster Controllers
A portable, battery-powered interface that automates the chore. Pre-programmed for 15-minute cycles, the Controller uses sequential logic to deliver 100% water pressure to every port—zero boat wiring required.
Comes with EPDM marine-grade hose kits.
Flush Ports
Permanent connection points for at-engine or in-boat access. Replace threaded factory ports with one-click Quick Connects that work with the Flushmaster Controller or a standard garden hose.
Water Fittings
Professional utility ports that eliminate the need for threaded or proprietary connections. Unlike standard chrome-plated fittings, ours are solid 316 Stainless Steel with a universal quick-connect design for flushing or onboard washdowns.
Engineered for the salt
Unlike market-standard quick-connects that seize and rust in weeks, every Flushmaster female adapter features an internal 316 Stainless Steel spring. This ensures effortless one-handed disconnects in harsh salt environments season fter season.
IMPORTANT: To ensure system integrity and prevent line failure during automated cycles, always use the reinforced EPDM marine-grade hose kits included with your system.
Accessories that adapt to your setup
Protection & Storage
The Suncover provides the ultimate UV protector, while the Storage Bag keeps your controller and hoses organized and tidy.
Permanent Rigging
The Piling Plumbing Kit saves trips to the hardware store, allowing you to hard-plumb and permanently mount your system to the dock.
Installation: Out-of-box to pro-rigged
Out-of-Box
Designed for immediate use. Every Flushmaster Controller and Engine Quick Connect kit includes all the tools needed for a DIY-friendly installation.
Professional recommended
The Reroutes and Water Fitting can require cutting into the hull and routing internal plumbing. While we provide mounting templates, professional installation is recommended.
Already Rerouted? You have options
Some boats already have flush access rerouted using standard Perko-style fittings. These work—but they aren’t quick connect. If you’re already rerouted, you can upgrade without starting over.
Replace the Fitting
Swap your threaded Perko-style fitting for our Solid 316 SS Quick Connect Water Fitting.
Replace the Plate
Switch to a Flush Port Reroute plate. Our side-by-side outlet design brings connections closer together for shorter, cleaner Flushmaster hose runs.
Add the Adapter
Screw our Flush Port Quick Connect for Suzuki piece directly into your existing fitting (requires a rubber gasket for a leak-free seal).
Ready to personalize your flush?
Whether you are starting with a single engine or rigging a quad-engine offshore build, we have the components to fit your boat.