Modernize older industries for your contemporary railroad with the Walthers Cornerstone Wall-Mount Industrial Dust Collectors kit. Today′s clean air laws require that dust, solvents and particulate matter be trapped before it can blown out of an industry. You′ll see these big collectors hard at work on the sides of food processing plants, mills, woodworking plants, furniture factories, chemical plants, textile mills, industrial painting operations and businesses that handle or cut paper. Highly detailed, plastic parts make it easy to model the complex curves and piping found on real wall-mount dust collectors. Check out more Cornerstone structure details here! Three dust collectors with wall-mount supports Easy-to-build plastic kit Great detail for industrial buildings Also includes corrugated-metal railcar loading canopy