Model 0895 turret model access doorways give heavy duty design with uncomplicated opening, ideal for use in medium and large stress spherical duct units. Capabilities involve an all-welded turret box and saddle fashioned to duct radius, and also a large-stress 0800 Series accessibility doorway that's caulked and fastened to turret. https://kylerjaocr.liberty-blog.com/37142125/the-definitive-guide-to-dampers-for-industrial-sector