attwood 11873-1 Wide-Mouth Marine Fuel/Oil Mixing Bottle 1-Quart Convenient wide-mouth, quart-size bottle Clear oil level marks in black Quickly and precisely determines ratios for 100: 1, 50: 1, 24: 1 and 10: 1 mixes Attwood develops high value, engineered marine products to make life on the water easier to enjoy