For water filtration, the DuoFilter system is the way to go.

• 24-hour programmable clock/timer for making wake-up coffee, with auto shut-off
• Deep Brew technology heats water to the ideal temperature then pulses it through the coffee grounds at precisely timed intervals to provide you with coffee full of rich, robust flavor
• Unique DuoFilter water filtration system removes chlorine for better taste and reduces mineral deposits for longer machine life
• Filter meter indicates when water filter should be changed
• Drip-free hermetically sealed carafe and lid keep flavor and heat locked in
• Stop n Serve feature lets you remove the carafe at any time during the brewing cycle
• Programmable auto shut-off from 1-5 hours