Single Flush muff for running your Outboard or Inboard Engine out of the water on a hose pipe. Suitable for all engines with water pick up on the side of the gear box behind prop. With the water running on the hose, start the engine and run for 2-3 minutes this flushes away salt and sand and prevents EXPENSIVE internal corrosion DO NOT LEAVE ENGINE UNATTENDED WHEN RUNNING AND KEEP AN EYE THAT IT DOES NOT GET TOO HOT.
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