Vaniman VMC-A300 Large Accumulator “ Pre Filter Cyclone for Dust CollectorsVaniman VMC A300 The Vaniman Large Accumulator is a pre filter cyclone for dust collectors. It acts as a dust separator that uses a cyclonic motion to push debris and dust to the bottom container while allowing separated air to be pulled into the dust collector prolonging dust collector filter and motor life. Features Easily Integrates Into Any Dust Collection System Removable Debris Capture Bucket Highly Durable Molded Resin Design Scientifically