Many people do not know what to follow when choosing a water filter in the kitchen. Often they make a choice under the influence of bright advertising. Meanwhile, the quality of the water to be cleaned by the filter is not the same in apartments and houses. It depends on many factors, including the condition of the water pipes, the source of water supply, etc. When choosing a filter, you need to know about all the contaminants present in the water flowing from the tap in your kitchen. Here you can find the best countertop water filter system.