Reverse osmosis water filtration systems are the most popular water filtration systems on the market currently. Reverse osmosis works by removing contaminants in water by forcing it through a semipermeable membrane. This system removes chlorine and sediment through a pre filter before forcing it through the semipermeable membrane to remove dissolved solids producing clean drinking water. There are varying systems available with reverse osmosis filtration systems but they all contain at least one or more filters including sediment filter, carbon filter, and semipermeable membrane. This filtration system offers many benefits by getting rid of bad taste and smell, removing contaminants, removing sodium, and having a simple installation process. While these systems can be used for whole-house filtration, it is recommended to use them in specific areas such as under the kitchen sink so they can focus on one area. These systems typically last anywhere from 10 to 15 years with the filter being replaced every six months to a year and the membrane replaced every 2 to 4 years depending on the water conditions.