The Black Diamond 3 Reusable Cloth Filters - 1.5-2.5 Gallon are designed for dry pick-up in vacuums, making it perfect for everyday household cleaning. Compatible with most Black Diamond and Shop-Vac wet/dry vacuums ranging from 1.5 to 2.5 U.S. gallons, these filters effectively capture common dirt, dust, and debris. Ideal for routine cleanup tasks, each cloth filter is reusable, offering long-lasting performance and value.