Use this ProTeam 6 quart triangular Intercept Filter Bag to avoid potential damage to a vacuum and improve its filtration performance. The pleated design of this filter makes for up to 21% larger filtration capacity, while a laminated liner prevents the inside from shredding during use and improves the filter's longevity. The open-collared design makes emptying and reusing this filter easy and the dual-layered construction of prevents captured particulates from escaping the vacuum and disrupting the air quality within your workplace. This filter bag is dry-fit by design and is made of paper for easy disposal. Fits 6 quart triangular backpack vacuums and come in a pack of 10.