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 hose.; No tools requried.; Easy to use.;