The Fuel Pre-Filter Funnel is a fast-flow filter-in-a-funnel that separates damaging free water and contaminants from gasoline, diesel, heating oil and kerosene down to 0.005 inch. Size ranges from 6×3.5 to 10×8.5 inches. Flow rates range from 2.7 to 5 gallons per minute. It is corrosion-resistant and useful for all internal combustion engines.