Big Horn 1 Micron Dust Collector Filter Bag, 20 in. exceptional dust collection efficiency by capturing 99% of particles that are 1 micron in size or larger, far surpassing standard dust bags that typically capture only 10% of dust particles. Despite its ultra-efficient filtration, the bag's microscopic pores allow ample cooling air to reach the motor, ensuring optimal performance. This dust collection bag is washable with mild soap on a gentle cycle, making it reusable and convenient for maintaining a clean workshop environment. Designed to fit most 20-inch diameter dust collection units, it provides a reliable solution to reduce dust on shop surfaces. Please note that attachment clamps or straps are not included. Imported. Model Number: