The Bosch GAS20-17AH Wet/Dry Dust Extractor is an industrial-grade powerhouse with a maximum 300 cfm capacity that filters fine dust, coarse dirt and liquids. The GAS20-17AH boasts 17 gallon capacity, and auto filter cleaning with HEPA filter to provide a complete package in helping users move toward OSHA silica dust regulation compliance. Its auto filter-clean system activates every 15 seconds and the HEPA filter captures 99.97 percent of particles at 0.3 microns and larger. The dust extractor features a high-performance 17.5 amp motor for heavy-duty applications, including concrete cutting and surface grinding with larger 7-inch and 9-inch grinders and up … Read more