Aquatec CDP 8800 water booster pump + Transformer 115V 1/4 & 3/8 aquatec CDP 8800 pressure boost pump 8852 model is higher flow than 8851 version for boost the water supply pressure for RO reverse Osmosis water systems use for 100GPD to 200GPD RO systems and some misting systems transformer is USA standard 115V 60Hz, US plug