Streamline® PVC DWV fittings are manufactured to exact specifications to ensure the best fit in the industry. Each fitting delivers excellent rigidity and smooth interior walls to improve flow, inhibit scaling and provide superior resistance to chemicals and corrosion. Our stringent quality control protocols guarantee that our fittings fit and perform flawlessly, piece after piece. All fittings are packaged in standard industry carton quantities and dimensions, and utilize an intuitive, easily interpreted style numbering system.