... 38, 50,76mm plastic pall ring PP, PE, PVDF, PVC, RPVC, RPP plastic pall ring Use as tower packing Plastic ... PE pall ring, PP pall ring, RPP pall ring, PVC pall ring, CPVC pall ring, PVDF pall ring, ... of ethylbenzene, seperation of isooctane/ methylbenzene.Material: PE, PP, RPP, PVC, CPVC, PVDF. Size: 5/8" (16mm); 1" (25mm); ... ,76mm plastic pall ring (Material: PE, PP, RPP, PVC, CPVC, PVDF, PTFE, HDPE)