HydroMaster 208 proportioner or chemical dispenser makes mixing concentrated chemicals easy and consistent. Automatic dilution with the HydroMaster 208 takes this variable out of the cleaning system so the concentrated cleaning product consistently delivers maximum performance. HydroMaster 208 uses water power instead of electricity so concentrates do not have to be located near outlets – just within a hose reach of a water source. Maximum dilution 110 parts water to 1 part chemical for products that can be diluted a long way. Minimum dilution 1 part water to 1 part chemical for products that need to be diluted very little and used very strong.