This Every Drop 8 water filter works in conjunction with the refrigerator to help reduce contaminants from the water supply, such as pesticides, cysts, industrial chemicals, and metal. It measures 4 inches high, 7.5 inches wide, 3.4 inches long, and weighs 1 lb. The filter compartment is in the top right corner of a side-by-side refrigerator and in the middle of the top-freezer refrigerator. If you notice the flow of water has decreased, it may be due to the filter needing to be changed. It should be replaced at least every six months.