The Samsung HAFCU1 Replacement Water Filter replaces the original water filter in Samsung's French door refrigerators. This replacement filter provides clean, fresh-tasting water and ice from dispensers, while its slim design allows for easy installation and removal without the use of tools. NSF certified, the filter reduces cysts, chlorine tastes and odor, particulates, heavy metals and chemicals, and mercury from your water, while still retaining important additives such as fluoride.