DCC-RWF Cuisinart Filters Product Features:

For use with models: DCC-1000BK, DCC-1200, DGB-600, DCC-2000, DCC-2200
Charcoal water filter removes impurities: chlorine, calcium, bad tastes and odors
Cuisinart recommends changing the water filter every 60 days or 60 uses, more often if you have hard water
For use with model DCC-2000
For use with model DCC-2200

DCC-RWF Cuisinart Filters Product Description From Amazon.com:
Coffee is 98 percent water. Often overlooked, the quality of the water is as important as the quality of the coffee. A good rule of thumb is that if your water doesn't taste good from the tap, it won't taste any better in your coffee. That's why Cuisinart suggests adding a water filter to the coffeemaker. The Cuisinart DCC-RWF charcoal water filter removes chlorine, calcium, bad tastes and odors, for the purest cup of coffee every time.

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