The RCC7AK 6-stage RO system takes the reverse osmosis process one step further by remineralizing the water and neutralizing the pH. The system's alkaline filter contains half red mineral stone and half calcite, giving it the ability to produce bottled-quality mineral water. The main body of the system measures 18 x 14.5 x 5.25 inches and the holding tank measures 16 x 11 inches, allowing both the system and tank to fit nicely in most under-sink cabinets. Included with the system is a lead-free solid brass body faucet with a brushed nickel finish. The faucet is typically mounted on the counter as the main output source for the RO water, but output lines can also be connected to your refrigerator output, ice maker, and coffee maker. The installation is streamlined and DIY for most users, with written, video, and tech support assistance. Replacement filters are standard sized and sold at factory direct pricing.