Craft Brew Pro 9000 GPD Reverse Osmosis Brewing System comes in two variations both are 220 V and can be ordered either float switch controlled or pressure switch controlled. Both units are loaded with options including blending valve, TDS meter, UV and plumbed and wired for anti-scalant system. The pressure switch control system comes with a 82 gallon RO pressure tank. With this configuration the 9000 can be used many different ways. If you need help figuring which system is the right one for you please call us at 805-777-7037.