This is an economical alternative to the expensive dust suppression models on the market. A useful piece of equipment when using diamond cutting discs and cores with petrol cut off saws, bench saws, floor saws etc. This bottle will suppress any dust created.Replacement hoses, pumps, pressure release valves, quick release couplings and washers are available on request.14 litres working capacity16 litres total capacityPressure release valve3 metres hoseStandard quick release couplingSpare set of washers.