In selection of filter component material, corrosion tolerance must be considered. Usually, acid-proof steel is used as the frame material for outdoor air filters. The components are equipped with either counter-flanges or strip connectors. For more information on Halton’s chemical filter components, see the PDF product sheets below, which contain details on, among other things, their uses, materials, and technical properties. To view the product sheets, you need the Adobe Reader software, which can be downloaded from the Adobe Web site.