Patented 3 in 1 sludge collector (wet + dry + coolant purifier) - New! Features: 1. Not just only wet suction, but also dry suction and liquid purification! 2. Easily handles water-soluble and oil-soluble cutting fluids. 3. Plug-in-free 4. No downtime 5. No consumables 6. Mobile easily 7. Workable for magnetic metals & non-magnetic sediments. 8. High suction pump can be matched with 8L/18L filter barrel 9. Bottom crumb collection + Maximum filtration precision: 1um 10. The 1.5-inch large suction pump work super-fast & dry sludge quickly