Food Grade High Pressure Clear PVC Tubing Braid-Reinforced by Duda Energy PVC tubing is a polyvinyl chloride plastic with plasticizers to make it more flexible and transparent. The braided design helps reinforce the strength of the hose. Popular for many applications. Food grade PVC tubing uses DOTP (Dioctyl terephthalate) to make the hose flexible which is an organic compound and a non-phthalate plasticiser.