Reusable Cloth Filter Bag - This is a Reusable Cloth Filter Bag for CK 3030 and CleanMax. This is a genuine CleanMax reusable outer bag specifically designed for the Wide Area Vacuum, and is different from the disposable paper filter bags. Your disposable paper filter bags fit inside the reusable cloth bag to add an extra layer of filtration. If the cloth bag somehow gets ripped or damaged, this is the genuine replacement for it.