WaterChef C7000 Premium Countertop Water Filtration System with Intelligent Monitor (Black) Powerful BIG BLOCK Filtration Technology for Superior Contaminant Reduction & Taste (Removes &gt;99% of LEAD!) Filter More and Spend Less - Huge 1,000 GALLON Capacity! (Just ONE Cartridge per YEAR for most families!) Tested & Certified by NSF International for Trusted Performance - NSF/ANSI Standards 42 and 53 Intelligent Monitor - Measures Actual Usage (No more cartridge replacement guesswork!) Stylish, Space-Saving System Attaches to Your Faucet (no tools) & Includes LIFETIME Limited Warranty!