Support cages provide a framework to hold filter bags and are made of stainless steel or galvanized iron rods arranged in a circular, oval, diamond, flat, or star shape configuration. The cages have shapes like circles or ovals and contain 6 to 24 wires of 3 to 6 mm diameter attached from top to bottom for support. They are applicable in industrial filtration processes where a strong frame is needed to support a filter bag.