Jan 19,  · The cartridge filter is the first significant improvement in single-stage dust collection in more than 30 years. Cartridge filters offer better filtration, better airflow and easier cleaning than bag filters (Photo 1). They are available on new dust collectors or as a replacement for the old filter bag on your existing single-stage - : American Woodworker Editors. Dec 17,  · If you can’t afford a cyclone dust collector, buy the most powerful single-stage collector you can afford, with a bag or cartridge filter that will trap particles as small as 2 microns. Connect it to every machine in your - : Asa Christiana. Upgrade your single-stage dust collector with a retrofit filter that can capture even the finest of dusts. Independently certified HEPA media rated % efficient at microns. Fits collector barrels that are 14"" O.D. in size. FXK/5(1).

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