GT-3000 Automatic Backwash Rotary Drum Microfilter 304 Stainless Steel Solid-Liquid Separator for Livestock Manure Wastewater Product Overview GT-3000 rotary drum microfilter separator is dual-stage solid-liquid separation equipment integrating rotary drum microfiltration and screw extrusion. The entire machine utilizes 304 stainless steel for the main body, drum screen, and extrusion screw, providing excellent corrosion resistance and long service life. Sewage enters from