Quatro- Velocity X4 - Dust CollectorThe Velocity X4 Cartridge Dust Collector offers high performance dust collection with multi stage filtration. Designed for universal use, the Velocity X4 is ideal for use with aluminous oxide, sand, quartz, glass beads, gypsum, die stone, ceramic alloys, acrylics, resins and more. Features a durable, maintenance free Brushless industrial motor along with a high performance cartridge filter. Plug and play design Small footprint 99. 97% efficient at 0.