Ideal for adding oil and other fluids to small engines and marine lower units. Flexible hose for hard-to-reach fill plugs. 4 cc Pump and 3/8"-16 swivel metal marine filler fitting. Adapter included with pump fits Mercruiser, Mercury, OMC, Evinrude, Johnson, Volvo, Force, Gamefisher, and Honda (70 hp and up) models.