As the only top rated reverse osmosis system on the market, and backed by iSpring’s industry-leading customer support, the RCC7 is unequaled in quality, performance, and durability. The system consists of a 5-stage, layered filtration built around precision reverse osmosis (RO) technology that removes over 1000+ different kinds of contaminants in order to provide the best home drinking water filtration available. It features a 75 gallon-per-day capacity RO membrane, which is larger than most in its class and provides the capacity to economically handle the drinking water needs of even a large family. Designed for do-it-yourself installation by most users, the entire system fits nicely under a standard kitchen sink. Installation is straightforward and all parts necessary for installation are included. You are guided by clear, well organized written instructions, instructional videos and access to iSpring’s unparalleled technical support. The system is quiet and low maintenance with no moving parts. Replacement filters are standard sized and sold at factory direct pricing. A lead-free, solid brass faucet with brushed nickel finish is included with the system and is usually mounted on the counter as the primary source of drinking water, but output lines can also be connected to your ice maker, coffee maker, etc. The whole system is backed by a 1-year money-back guarantee, a 1-year manufacturer warranty and iSpring’s unique lifetime technical support provided right here in the USA in Alpharetta Georgia. With the RCC7, enjoy crisp-tasting, bottled quality water, every day, right in your home. Chlorine reduction (%) – 99. Copper Reduction (%) – 97.