Moeller Marine 099080-00 Motor Flusher for Volvo Penta Engines Moeller offers a comprehensive series of motor flushers that extend your motor life quickly, easily and effectively. The Volvo Round Cup Motor Flusher Features Fits 200, 250, 270, 280 and 290 hp lower units. Flushes contaminates from lower unit cooling systems Quickly removes salt and mineral build-up with a simple flush that slips over side water inlets on most inboard and outboard lower units. Install in seconds using just a garden