PVC End Caps are placed anywhere a pipe ends to enclose the insulation and ensure a vapor barrier. PVC End Caps are also very popular in pipe size reductions (reducing) by covering the exposed fiberglass insulation of the larger pipe size. PVC End Caps can be cut from the outside of the circle into the center (cut circle same diameter of the smaller pipe insulation). With Yash Polymers you are served with best quality PVC end caps anytime