【Fleece Filter Bag】VB090F is the replacement part number for this dust vacuum fleece filter bag. The fleece filter bag for the dust cleaner measures 21.25 inches in length and 16.5 inches in width.6 Packs(This filter bag is only for use when collecting dry debris.) 【Compatibility】VB090F dust bags are compatible with the 9-gallon dust extractor models VAC090A, VAC090AH, and VAC090S. This dust vacuum filter bag is designed to work with HEPA filter-equipped dust extractors, effectively trapping dust and debris. 【High Quality】The replacement fleece filter bag is crafted from premium fleece, non-woven fabric, and filter cloth. This ensures the dust extractor bag offers excellent adsorption and breathability, maintaining efficient dust removal performance over time and helping to extend the service life of your vacuum cleaner. 【Dust Port Design】The dustproof hose port of this dust collector bag is designed to seal shut, allowing for clean and easy debris disposal. When replacing the HEPA dust extractor bag, sealing the filter bag’s opening before removing it from the vacuum simplifies cleanup and prevents the HEPA-equipped VAC090 from clogging up quickly. 【High-Efficiency Filtration】HEPA filter dust bags effectively capture fine dust, pet dander, microparticles, and more—helping to keep your home truly clean and improve indoor air quality at home or in the office. VB090F filter bags are also easy to install and remove, simplifying the maintenance and cleaning of your vacuum. 1.Unlock the canister latches and remove the control unit. 2.Grasp a new dust bag at the flange. Push it over the internal dust port first and then over the raised ring. Make sure the entire flange is seated in the recessed area of the internal dust port. Make sure that the dust bag is not folded over on itself and the full length of the bag faces the front and bottom of the canister. 3.Re-attach the control unit. 4.Lock the canister latches. *This is NOT a product of, nor is it sponsored or endorsed by BOSCH.