The 3M Aqua-Pure in-line water filter system, IL-IM-01, is a single cartridge that helps reduce sediment, chlorine taste and odor which may be in your drinking water and ice cubes. Ideal for the refrigerator that does not have a built-in water filter, this system can also be used for drinking fountains, coffee machines and drink dispensers. The IL-IM-01 cartridge provides effective filtration for up to 2,500 gallons (9,464 liters) at 0.5 gpm flow rate. The cartridge, using standard 1/4 in inlet/outlet connections, is sanitary in design and requires no contact with the filter media during change-out. The cartridge change-out frequency is every six months or sooner if water quality issues reduce water flow rates. In many filtration applications, carbon is often the preferred media of choice to absorb certain impurities and one of the most powerful absorbents available. Carbon is highly effective due to the vast surface area contained within a small footprint. One pound of carbon contains a surface area of approximately 100 to 125 acres and can absorb an extremely wide range of substances which may be in drinking water. 3M, a household brand name, is a known leader in filtration technology and recognized for innovation, trust and quality around the world and 3M branded water filtration products have been addressing water quality issues for over 50 years. 3M products offer a wide range of solutions designed to address many types of water quality concerns. Third-party certifications, such as NSF and WQA, are a quality advantage we strive to provide on many 3M water quality improvement solutions. Having clean and clear drinking water in your home is as pleasurable as it is reassuring to know that you're giving your family the best. With a water filtration system from 3M purification, you can provide filtered drinking water for every member of your family. From whole home water filtration to drinking water systems, look to 3M purification to help you find the right solution.