Donovan Marine Universal Outboard Motor Flushe

Universal Motor Flusher, Allows The Cooling System To Be Flushed Out Using A Garden Hose, Works On Most Outboard & Inboard/Outboard Motors, Also A Great Way To Test Run Your Boat Before Heading For The Water, Increases The Life Of All Outboard Engines, Cups Rotate For Easy Application, Soft, Rubber Cups For Proper Circulation, Prevents Scratching.