Made in the U.S.A.Engineering saltwater flush systems 3-year limited warrantyFlushes 1 to 6 engines 12VDC Plug n PlayNo engine operation required Made in the U.S.A.Engineering saltwater flush systems 3-year limited warrantyFlushes 1 to 6 engines 12VDC Plug n PlayNo engine operation required
FlushStar Quantum 25 manifold connected to a bank of outboard engines
Quantum 25  /  Automatic Marine Flushing System

Cleaner engines.
Longer life.

The Quantum 25 clears salt, sand and mineral buildup from your engine's full cooling circuit in one push-button cycle. No hose-holding. No ear muffs. No guesswork.

✓1–6Engines flushed
✓12VDCPlug n Play
✓0 minEngine run time
✓3 yrLimited warranty
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A salt-encrusted thermostat housing held beside a FlushStar unit
Salt from an unflushed passage  ·  tap a marker
Why it matters

Protect your engine.
Protect your investment.

Saltwater quietly wears down every cooling passage in your outboard. FlushStar checks all the boxes.

✓Hassle-free

One-touch startup runs the full cycle automatically, so you're not stuck at the dock for an hour babysitting a garden hose.

✓Eliminates awkward engine access

FlushStar connects to a standard flush port — no climbing over the transom to reach a factory plug or line up a set of ear muffs.

✓Takes the guesswork out

Trackable progress. Built-in diagnostics log total runtime and completed flush cycles, so you know the job got done right. Every time.

Operation

Two steps. Then walk away.

The boat can be in the water or on the trailer. The engine never has to run — which means no noise, no emissions and no fuel burned to protect your motors.

01

Connect freshwater

Hook a standard garden hose to the FlushStar inlet. The system is already plumbed to each engine's flush port, so there is nothing to align and nothing to guess at.

02

Press start

One button. A controlled pressure build and release flushing sequence runs through every motor in the bank — one through six.

03

Walk away

The cycle runs unattended and shuts itself down. Diagnostics log the runtime and the completed cycle count so you have a record, not a hope.

0Year limited warranty
0Engines on one cycle
0Button to start it
0Emissions or fuel burned
Configure

Built around your engine bank.

Single outboard or a bank of six, the Quantum 25 flushes them all from one manifold on one cycle. Pick your setup below to see how the system is laid out.

FlushStar Quantum 25  ·  System Layout Ready

How many engines?

Select an engine count to configure the manifold.

Engines
4
Manifold ports
4 active
Water source
Garden hose
Engine operation
Not required
Cycle status
Standby
INLET FLUSHSTAR
The unit

Flush your motors, not your time.

One-touch startup

Press once. The full cycle runs start to finish without you.

Built-in diagnostics

Tracks total runtime and completed flush cycles on board.

Controlled pressure cycle

A build and release sequence that works the salt out of every passage.

No engine operation

No running motor. No noise, no emissions, no fuel burned.

1 to 6 engines

One manifold, one cycle, however many motors you run.

In or out of the water

Works on the trailer, in the slip, on the lift.

12VDC Plug n Play

Runs off boat power. No extra programming to set up.

Made in America

Designed, machined and assembled in the U.S.A.

A triple outboard installation on the water
Performance

Six minutes does the work of twenty.

Six minutes of flushing with FlushStar is equivalent to twenty minutes of running your engine in fresh water — without running the engine at all. A controlled pressure build and release sequence moves salt out of passages that idling never reaches.

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Specification

The short version.

Engines supported
1 – 6
Power
12VDC
Installation
Plug n Play
Programming required
None
Water supply
Standard garden hose
Engine must run
No
Boat in or out of water
Either
Engine makes
Yamaha, Mercury, Suzuki, Honda
Fits existing boats
Yes — retrofit
Diagnostics
Runtime + cycle count
Emissions / noise
None
Country of manufacture
U.S.A.
Limited warranty
3 years
How to buy

Two ways to get one.

Pricing depends on how many engines you run and which adapters you need, so we quote it properly rather than guessing on a web page.

Direct

Call us for pricing

Tell us your engine count and make, and we will price the right configuration for your boat.

850-250-2483
Or send us the details

Through a dealer

Buy from your marine dealer

Already dealing with a marine shop? They can order FlushStar for you and fit it while the boat is with them.

Dealers can apply for a trade account here.

Retrofit

It goes on the boat you already own

This is not just for new builds. The Quantum 25 fits existing boats — one 12 volt feed, a garden hose connection, and a line to each engine's flush port. Nothing about the engine changes.

Why FlushStar

Real support. A straight guarantee.

Equipment built to handle saltwater, backed by people who pick up the phone.

Customer support

Real people, real help

Call 850-250-2483 and we'll get back to you fast. No ticket queue, no phone tree.

30-day guarantee

Performance, promised

Try FlushStar with confidence. If it doesn't perform as promised, we'll make it right within 30 days.

3-year warranty

Built for saltwater

Engineered to stand up to saltwater exposure and reduce corrosion-related engine damage. Covered for three years.

The smarter way to flush is here.

Tell us how many engines you run and we'll spec the right system for your boat.