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 aggressive chemicals such as aromatic and alphatic hydrocarbons.Not suitable for ketones or esters or very strong oxidising agents in concentrated form (i.e. Nitric acid over 50%) .Black, Ryton body.Ryton vanes with Viton seals and Teflon flange gaskets.