PVC Flexible Corrugated Conduit (PLFNCB2) is made of thermoplastic polyvinyl chloride (PVC) with smooth inside and wave outside surface. The material is compliant with RoHS requirement and featured to resist UV, age and oil. The extra flexible LFNCB conduit integrates a reinforce member to shape a wave surface that enables higher flexibility and offers the performance of self-support and crush resistance. PVC is a material in good extension. It gives lighter weight and easy to cut which is benefit for quick assembly on site. The best efficiency of water proof for whole wiring system is able to achieve by connecting with the liquid tight fitting series P50, P53, PP60, PP63 and N161.