Filter bag cage The Filter cage is a rib of a filter bag and it should be light and easy for installation and maintenance. The quality of a cage has directly bearing on the filtering state and service life of a filter bag. Every cage we make can meet the requirement for tightness, smoothness and uprightness. 1.material of cage: carbon steel/SS304, 316, 316L 2.type of cage: any type 3.type of the horizontal bar: Any type 4.surface treatment: Galvannized or silicon power plated The vertical bar, horizontal ring, spacing ring, length, the diameter of the ring and the shape of the cage can be according with the requirement from client. The thichkness of the longitudinal wire can be Φ3, 3.2, 3.5, 3.8, 4.