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. Water Treatment System, House Filter System , Water Purifier Filter , Hard Water Treatment ,City Soft Water Softener . Not only does the filter life reminder feature add convenience, it's also good for your health. It helps you maintain your water filter and ensures that the effectiveness of the filter is not compromised over time. This is crucial because tankless RO water filters are designed to remove impurities in water that can cause health problems. With the tankless RO water filter system and filter life reminder, you can always rest assured that your family is drinking safe, pure water. The product will supply to all over the world, such as Europe, America, Australia,Armenia, United Arab emirates,Pakistan, Monaco.When choosing a water filter, it is important to consider the quality of the water you will be drinking. Investing in a quality reverse osmosis water filter will ensure you have safe, clean drinking water.