Hydro-Logic Hydroid - Compact Commercial RO System Up To 5,000 GPDThe Hydroid is the industrys premier compact, portable commercial water filter at an affordable price. Achieve up to a 4,500 GPD (gallons of water per day) capacity (blended), or 3,000 GPD pure RO water. Not only is the Hydroid powerful, but it can produce a 2 parts product to 1 part wastewater ratio, making it the most efficient system in its class. New, groundbreaking technology for a compact system with commercial scale performance.