(1/2" Dia. x 50 ft) - HydroMaxx Black Flexible PVC Pipe for Koi Ponds, Irrigation and Water Gardens Very Flexible, ideal for working in confined areas. Crush and impact resistant. Reduces the number of required fittings and permits the installer/user to make smooth, tight turns, thus, Saves time, labor and cost. True Schedule 40 PVC Pipe. Uses Standard Sch 40 Fittings and PVC Glue and can be connected to rigid PVC with ease Sun, ozone (UV) and chemical resistant, Coils easily for storage and transportation Smooth inside and out - permits unrestricted flow, reducing operating costs. Precisions outside diameter (standard IPS size) is designed to be glued into standard Schedule 40 PVC fittings.