Support Cages The Filter Bag Cages are used in bag house for supporting a filter bag on a cell plate. A support cage prevents bag collapse during filtration and aids in its re-distribution and cleaning of the dust cake. These cages are used in most bag houses for optimum bag performance and durability. We manufacture and supply a wide range of standard and non-standard cages that are designed to suit all types of bags. Shaker Filter Bags AKJ Industries provide a wide range of Shaker Filter Bags for Standard applications or manufactured to your specifications.