DirectoryDust Control & Explosion PreventionBig Round Filter (BRF)Imperial Systems Inc. Ease of operation Three-year warranty Minimizes the number of moving parts, reducing wear Self-contained cleaning system Reliable, easy-to-maintain rotating arm Request More Info Fill out the form below to request more information about Big Round Filter (BRF)More From Imperial Systems Inc.Big Round Filter (BRF)Diverter ValvesBRF - Big Round FilterCyclone Dust CollectorsHD AirlocksLP AirlocksCartridge Filter OverbagsFlex HoseHigh Efficiency CycloneDeltaMAXX™ Replacement Cartridge FiltersHigh Speed Abort GateCMAXX™ Dust and Fume Cartridge Collector