Dust Collection System Home / Dust Collection System Dust Collector [bag filter] (GH-A) Dust Collector [Built-in German-made filter plate] (GH-D) High pressure plate-type dust collector [automatic backwashing system] (GH-B) Round Negative-Pressure Tank (GF-450-EA) Powder Conveying Filtrating Tank [Built-in filter plate] (GF-600-A3)