... ", 4" Standard: BS, ANSI, DIN, JIS, SOCKET or THREAD Material: PVC Environment friendly, non-toxic, good looking;Light weight, easy to ... handle and transport;Soft colors and excellent design, suitable for installation either exposed or hidden.Wonderful ability in chemical corrosion ... standard, the quality, the size, the color, etc. "XE" Octagonal PVC Ball Valve for Agriculture