Spiral HDPE Pipe have been manufacturing structured wall HDPE pipe since 1991, previously known as SPIROPIPE. Spiral HDPE Pipe manufactures pipes in internal diameters 400mm to 1400mm in steps of 100mm and also in 1800mm, 2000mm, 2500mm, 300mm and 3500mm, Spiral HDPE Pipe is manufactured in stiffness ratings of 2, 4 and 8kN/m². Spiral HDPE Pipe also fabricate specials such as manholes, tanks and floats