Quooker Cold Water Filter | CWFQuooker Cold Water Filter Cwf Cold water filter suitable for the CUBE cylinder The filters must be replaced every 12 months regardless of the amount of water use Easy to replace Quooker Cold Water Filter Cwf The Cold Water Filter has been designed to allow you to quickly switch from tap water to cold filtered water. The water passes through an activated carbon filter which ensures the water tastes and smells better. The filter is easy to replace and