Olympia providing water systems OROS-50 which is 5-stage reverse osmosis water filtration System. Easily 5 gallons per day (GPD) reverse osmosis membrane. The filtration section of the system measures 16” W x 7” D x 20” H & the tank measures 12” W x 12” D x 18” H. It’s fitting under sink cabinets. Installing the system is very easy and for any issue USA based customer support available from Olympia water systems. Item weigh Item Weight 25.6 pounds and origin of China.