groz 44191 plastic rotary pump. A range of special application pumps designed for use with media that cannot be pumped using a regular cast-iron or steel pump. Pump body & handle are constructed using glass filled polypropylene. Vanes made out of ryton. Complete with 3 pc threaded suction tube for use on 15 gallons (50 liter) to 55 gallons (205 liter) drums.