Includes two main filters and one small brush. Compatible with vacuum models 11S, 15C, and 30C. Key benefits Efficient dust capture: main filters trap dust and debris to promote cleaner indoor air and help maintain your vacuum's performance. Durable construction: built from robust materials that resist clogging and help preserve suction power over time. Easy maintenance: quick, hassle installation and replacement to keep your vacuum running smoothly. What makes it stand out Clearly designed to fit specific models (11S, 15C, 30C) for reliable filtration and performance. Reusable replacement cycle supports longterm use with consistent filtration quality. How to use Remove the old filters, insert the two main filters and the small brush included in the set, and dispose of or clean as needed between replacements. 23 practical use scenarios Regular household cleaning with pets or allergies: captures fur, dander, and fine dust to improve air quality. traffic homes: maintains strong suction by filtering out large debris and particulates. Between deep cleans: quick replacement keeps the vacuum performing at its during extended cleaning sessions. Compatibility and performance notes Designed for models 11S, 15C, and 30C to ensure proper fit and filtration efficiency. Provides sustained suction and cleaner air with durable materials that resist clogging.