Craft Brew Pro 5500 GPD Reverse Osmosis Systems come in 2 Configurations. Both are 220v but can be ordered Pressure or Float switch controlled. Both units come loaded with options. With the blending valve in TDS meter you will have total control of your water quality. Also for the final stage Ultraviolet Sanitization. If you have any questions on which configuration is best for your brewery, please give us a call at 805-777-7037. All of our systems are Proudly Built in the USA.