This model uses disposable No. 4 cone filters. An optional water filter is available if you don't have filtered water of do not wish to use bottled water. A nice feature of this model is that brew strength can be adjusted. This great for those who prefer a stronger cup of coffee.  For those who can't wait for the entire pot to brew, there is a Pause and Serve feature which allows coffee to be served during the brew cycle. When the carafe is removed, the flow of coffee stops.The best feature of all is the ability to program a start time. Set the Auto Brew time and your coffee is waiting for you when you wake up.  Cleaning the unit is easy and the filter holder and carafe are dishwasher safe. the cord tucks into the unit for storage.. [This review was collected as part of a promotion.]