Pride Plumbing came out and installed an AQUATru 4-stage reverse osmosis (RO) under-sink water filtration system. This included mounting the water filter base; connecting its inlet and outlet water supply lines to the base and the existing water supply lines underneath the kitchen sink; installing the water filter and its housing; and testing for leaks and proper operation. Once the filtration system was installed, we tested and cleaned sediment from the kitchen sink faucet.