Allows operation of engine when not in the water. Flushes engine to remove salt and other contaminants from the cooling system.
Fits- Mercury / Mariner outboards with side water intakes,
- Mercury MerCruiser stern-drives (except Blackhawk)
- Mercury Torque Master gear cases
- L6 Verado 200/225/250/275/300/350/400R Models
Models with dual water pickup such as certain Bravo One and year 2000 and newer V6 outboards may require an addition kit.