Flushmaster 4-Outlet (single to quad engines)

Product details

The Flushmaster 4-Outlet makes outboard engine maintenance faster, easier, and more effective. This portable, battery-powered device automatically flushes up to four motors sequentially and shuts off when done—no standing around, no hose switching, no missed steps. Built to handle harsh marine environments, it connects easily to your water source and runs with the push of a button, helping you protect your engines and spend more time enjoying the water.

Specs

Flush Capacity: up to 4 motors sequentially
Power Source: (3) AA batteries (included)
Water Connection: Standard garden-size hose or spigot
Waterproof Rating: IP67 Certified
Materials: Marine-grade ABS housing, 316 stainless steel internals, brass screw inserts
Dimensions: 9" x 6" x 3" (approx.)

Comes With

FLUSHMASTER 4-Outlet Device
(3) AA Batteries
(4) Outlet Hoses
(8) Hose Clamps
(4) Hose Barbs
Screwdriver
Instructions Manual and Warranty

Installation

Install the included AA batteries
Remove the plastic film cover on the screen
Install the included outlet hoses and hose fittings
Turn on device and confirm the outlet settings are correct for your setup (see instructions)
Connect freshwater source to Flushmaster device
Connect the outlet hoses to your outboard flush ports
Press Start

Compatibility

The FLUSHMASTER is compatible with four-stroke outboards with flush ports. Ensure you select the optimal hose length to accommodate your application.

Real problems.

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Watch and see why our products are the future of outboard flushing — and why you’ll want to make the switch today.

Compact and Portable

Waterproof and Durable

Battery Powered

Promotes Maintenance

Flushmaster 4-Outlet (single to quad engines)

Stop wasting time and risking costly damage to your outboards. The Flushmaster 4-Outlet is the ultimate tool for single to quad-engine maintenance — fully automated, fully portable, and built tough for life on the water. Just connect, press start, and walk away while Flushmaster delivers a full, hands-free flush that protects your investment and extends your engine life.

Engineered for real-world marine conditions, the Flushmaster is built with marine-grade materials, 316 stainless steel internals, and brass screw inserts to stand up to harsh saltwater environments. It's IP67 waterproof certified and hurricane-tested, so you can trust it to perform — rain or shine, trip after trip.

Designed for total convenience, the battery-operated system lets you flush anywhere your adventures take you. Whether you're on a boat lift, dock, trailer, high and dry, or marina, the Flushmaster adapts to your setup. Hard plumb it in permanently, or connect easily with a reinforced hose. Mount it securely to a piling, stash it in the Storage Bag, dock it in the Cradle, or use the SeaSucker attachment for a quick, no-drill setup.

No timers, no hoses to babysit, no guesswork — just reliable, consistent flushing at the push of a button. The Flushmaster takes the work out of maintenance so you can spend more time on the water — and less time worrying about it.

Protect your engines. Save your time. Trust Flushmaster.

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