Countertop Filter SystemMulti stage filtration system: This 5 stage filtration system can effectively reduce impurities commonly found in tap water, such as colloid, sediment and up to 99% chlorine. It can also reduce heavy metals, hydrogen sulfide, fluoride, providing safe, tasty and fresh drinking water. All for your health: The filtration process adds minerals such as calcium, magnesium, and potassium that benefits your health, which is normal to get a higher TDS value.