Ryton Rotary Pump. Fits 15, 30 & 55 gallon drums with a 2"" bung opening. Used for aggressive chemicals such as Esters, Alcohols, Bases, Hydrocarbons, Ketones. Dispenses 8 gpm. Included: 3 piece suction tube, 2"" bung adapter, curved discharge spout. Wetted Materials: PTFE, Viton, Ryton, Polypropylene & 304SS