UC100 Features: -Powerful certified carbon block filtration performance certified for more than 99% lead reduction. -Designer chrome faucet with integrated LED filter change indicator (included). -Twist and seal filter makes replacement a breeze. -Double o-ring filter seal to prevent leaks. -Low cost maintenance. -Certified for NSF/ANSI Standards 42, 53, & 372 and CSA B483.1. Product Type: -Under-sink. Filter Component: -Filtration system. Filter Change Indicator: -Yes. Specifications: NSF Certified: -Yes.