It is a USA made 5 stage reverse osmosis system that can store up to 75 gallons water per day. It has 20 micron pre filter and 5 micron filter that has greater capacity to purify water. It has activated carbon technique to strain the impurities in your water. It also comes with a carbon post filter to check the impurities, together giving good taste in water. This filter can complete the purification process by separating solids, sediments and other elements in your drinking water. It contains high capacity to separate minerals from water. It has a 3.2 gallon storage tank that has 5 year warranty and features an auto shut off valve to prevent loss of extra water. It has branded John Guest fittings parts that can give you secure pipe connection and tubes. It offers NSF certified standard 65 lead air gap faucets that can prevent the coming of chemical back flow to your RO system. There is a lifetime warranty on the faucets.