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The DuPont WFDWC40001 is the correct replacement for the following water systems:
The DuPont Undersink Carbon Block Cartridge is a universal carbon block cartridge that has a filter capacity of 1,000 gallons. Also known as part number WFDWC40001, this 10" undersink water filter will last up to 6 months. For optimum performance, replace your 1 micron water filter as recommeded, depending on water quality and usage.
DuPont Carbon Block Filter Cartridge specifications:
The DuPont Carbon Block filter helps to improve the taste and clarity of your drinking water. With advanced undersink water filters, your drinking water is safe and the flavor in your food and beverages is better.