Reverse rotary action (pump/syphon) .Max. output 35 ltr/min.2'' BSP barrel adaptor.3 piece riser tube, length: 390mm per piece, 1200mm overall.2 piece outlet spout, threaded 3/4'' BSP ends.Weight - 2.9kg.Suitable for water based solutions of acids, alkalis and salts, some organic solvents, water and all petroleum products.Yellow, polypropylene body.Phenolic vanes with Viton seals and polyethylene gaskets