This FreshFlow™ Air Filter keeps pollutants out of your refrigerator while allowing air to actively pass through the filter. Made from carbon-based material that reduces common food odors, it's 15 times better than baking soda at eliminating odors. This air filter measures 3"W x 2"H and is white in color. It should be replaced every 6 months to ensure optimum performance in your refrigerator. This is an accessory that can be used with several brands; check to see if your model number is compatible. Using this filter will require no disassembly or repair experience.