WaterChef U9000 Premium Under-Sink Water Filtration System with Intelligent Monitor (Oil-Rubbed Bronze Designer Faucet) Powerful Big Block&trade; Filtration Technology for Superior Contaminant Reduction & Taste 1,000 GALLON Rated Capacity! (ONE Cartridge per YEAR for most families!) Independently Tested & Certified by NSF&reg; - Trusted Performance Intelligent Monitor&trade; (No cartridge guesswork!) & Polished Stainless Steel Housing Includes Premium Designer Faucet (with built-in monitor LEDs) & a LIFETIME Warranty!