DuPont DUPONT-WFQT273005 Quicktwist 2 Stage Drinking Filtration System Filtration system makes drinking water safer with improved taste and greater clarity by removing cto, voc's, cysts, and heavy metals Includes filter system head, 2 carbon block filters, chrome faucet, water supply adapter, 1/4" plastic tubing and mounting hardware Quick twist change system with auto shut-off for easy cartridge replacement Installation is easy; no tanks or drains required to install Two-stage filtration optimizes under sink water filter life and performance