Clear Acrylic Pipe 1 foot long. NPS size - 4" Inner Diameter - 4.25" (108.3mm) Outer Diameter 4.5" ( 114.3 mm). Wall thickness - 3 mm. Crystal Clear absolutely transparent , seamless, new pipe, comes with protective film to avoid scratches. It is not pressure or temperature rated. Cuts easy with disc saw. It fits sch.40 4" PVC fittings. Orders for multiple amounts will be shipped in one piece. Like when you order amount of 2 or 3, you will receive one piece of pipe 2 ft or 3 ft long. The longest we can ship is 4 ft. If you need it in separate pieces, please send us a message