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The 3M Screen Unit 18 X 220 Grit delivers consistent, reliable abrasive performance for floor preparation and finishing work. This 18-inch screening unit features 220-grit abrasive material engineered for effective material removal while maintaining surface uniformity. Ideal for intermediate sanding stages, it produces a smooth finish that prepares floors for subsequent treatments or final coatings. The durable construction ensures extended service life across multiple applications. A trusted choice for professional flooring contractors seeking dependable, cost-effective screening solutions.