Universal Active Carbon Trash Can Filter Refill Pack (4-Pack) Aftermarket Filter. Naturally Removes Odors, Allergens and Harmful Pollutants. Fits Most of The Popular Trash Can Models An easy way to way to maintain a fresh and odor free environment. All-natural active carbon filters that absorb odor-causing agents and neutralize smells naturally. The size of the filter is 4.3L x 3.2W x 0.3H. Please remember to check the size of your filter holder before ordering. Each filter lasts up to 3 months. What you get: 4 highest quality active carbon trash can refill filters.