Our Imperial Water Filters are designed using only the finest and most effective components out on the market. The main feature is its CeraUltra OBE filter and carbon-block technology for reducing a vast array of contaminants including chlorine taste and odor, VOC's, dirt and bacteria. This exclusive purification technology turns polluted waters into safe and wholesome drinking water. The system includes everything you need for installation under the sink. Since some alterations may be needed around the sink area we do highly recommend having a plumber install the system. Overall, we were impressed with its sturdy construction and design, strong water flow out of the faucet, how long the filter can last when used properly and most importantly how great the water tasted!