3 Stage - Inline Alkaline/KDF/Carbon Mineral Drinking Water Filter | 2" x 10" The Ro system reduces the pH level this filter will not help restore it but improve it!-Receive the benefits of KDF, GAC Carbon & Alkaline in one water filter at a fraction of the cost! This supreme handcrafted 2" x 10" filter is an excellent add on for Reverse Osmosis Systems, refrigerators, and ANY other type of drinking water systems. With this filter you won't need a post inline carbon filter-this would the final stage therefore being extremely COST EFFECTIVE. Benefits of Alkaline: Improves metabolic functions, significantly helps the body absorb minerals because of its high oxygen content, pH Alkaline Filter has the ability to raise the pH of the filtered water up to 10.5. Benefits of KDF: High-purity copper-zinc redox media consistently remove 99% of free chlorine by electrochemically reducing dissolved chlorine gas to water-soluble chloride ions. KDF process medium are being used to complement or replace activated carbon filters, removing up to 95% of the chlorine when treating municipal water. Benefits of GAC Carbon: Removes chlorine, bad taste, odor, THMS, turbidity, dirt, and sediment. One pound of carbon contains a surface area of roughly 125 acres and can absorb literally thousands of different chemicals. The filter needs to be replaced every 2 years or 1,500 gallons-which ever comes first. 100% handcrafted in the USA | Super easy & convenient installation | No Hassle Return Policy | Satisfaction Guaranteed. All of our products are shipped directly from our factory. This allows us to cut out the middle man and pass on the SAVINGS to you! It's that simple. If you have ANY questions please feel free to contact us 1(951) 400 3365.