Under-sink water purifiers usually consist of a pre-filter, a reverse osmosis membrane, and a post-filter, all installed under the kitchen sink. Pre-filters remove sediment, chlorine, and other contaminants that can affect the taste or odor of the water. The reverse osmosis membrane is the heart of the system as it removes up to 99% of impurities including lead, bacteria, viruses and other harmful substances. An after-filter then adds some healthy minerals and improves the taste of the water. Reverse Osmosis Water Softener, Countertop Water Filter Dispenser , Drinking Water Filter System , Water Filter Indoor ,Main Line Water Filter . As a leading manufacturer, we have over 30 years of experience in producing. From small household filters to light commercial grade systems, we have solutions to meet different needs and preferences. The product will supply to all over the world, such as Europe, America, Australia,Indonesia, Ghana,Myanmar, Ottawa.Angel reverse osmosis system is an efficient water purification solution with a range of advantages. Whether you want to improve the quality of drinking water in your home or need a reliable and efficient solution for your business, a reverse osmosis system is definitely worth considering. With its longer lasting RO membrane and high filtration rating, it is sure to meet your needs and provide you with clean and safe water for years to come.