Get current pricing for Andritz Sprout Bauer, 1008 MST Andritz Sprout Bauer 304 Stainless Steel Rotary Air Lock. Model 1008 Mst. Serial # 94-00144. Has An 8 Vane, 10 D X 8 L, Type 2 Rotor. Has An 8 X 8 . Product Category: Process Equipment, Sub Category: Process Valves: