This is the first GS-4M mini dust collection package installed in Australia. The unit now operating on a NC Plaz Compact - Design Correlations plasma table at Virgin Environmentals manufacturing premises. These compact four filter units come complete with filters, fan, reverse pulse controller, spark arrestor and additional HEPA filter for indoor air quality. These units come ready to plug and play with power, ducting and airline connections the only installation needed. The GS-4M Gold Series dust collector is a great addition to the quality Camfil Farr range.