AAF's Universal Holding Frames can be used individually or may be combined to fit virtually any size filter bank. This model is constructed with 18-gauge galvanized steel. All frames feature holes on each side for bolting or riveting into filter banks. The 3” deep (nominal) frame will support all standard combinations of pre and final filters. Factory installed PVC gaskets ensure a proper seal between the frame and filter to minimize dirty air bypass (all standard sizes are also available ungasketed).

The Galvanized UHF are designed to use either the Universal Holding Latches or the Knock-on style holding latches. Seven standard sizes are available (WxH): 24 x 24, 20 x 25, 20 x 20, 16 x 25, 16 x 20, 20 x 24, and 12 x 24.