LubriMatic Green 55-156 Barrel Pump with DEF Handle Made with a strong polypropylene construction Fits 5 to 55 gallon drums with standard bung Produces 9Oz per stroke LubriMatic Lever Barrel Pump for use with DEF (Diesel Exhaust Fluid) Fits all 5-55 gallon pails/drums with standard bung fitting Features polypropylene construction with Viton seals and stainless steel rod Delivers 9 ounces per stroke; ergonomic handle design allows for comfortable, fatigue free pumping 7/8 inch OD spout; can also be used to pump mild acids, alcohol, mild alkaline, anti-freeze, diesel, gas, machine oil, petroleum, thinners, and windshield washer fluid