Upgrade the performance of the VAC090-series dust extractor with the help of the 9 Gallon Pro+Guard Surfacing Kit (GXA4-01L) by Bosch. The fleece filter bag traps preliminary debris while the HEPA filter effectively captures 99.97% of particles larger than 0.3 microns. Designed to move toward compliance with the OSHA respirable crystalline silica dust regulation, the port cover on the fleece filter bag keeps particles out of the air during disposal. As a part of the L-Boxx Stackable tool-storage system, the 9 Gallon Pro+Guard Surfacing Kit includes a case that interlocks quickly, providing tool protection and accessibility, even when stacked, as well as a crush resistant, anti-static hose designed specifically for Bosch VAC series dust extractors.