... PVC, CPVC, PVDF, PTFE, HDPE Size: 5/8", 1", 1.5", 2", 3" Use as tower packing Plastic pall ring:PE pall ... , etc.Technical data of Plastic pall ring: Diameter (Inch)Dimension d×h×δ (mm)Specific surface area (m2/ ... 1 )Heaping number (n/m3)Heaping weight (kg/m3)5/8 "16×16×11880.912751120001411 "25×25×1.21750 ... "50×50×1.5930.901276500563 "76×76×2.6730.9294193060 Plastic pall ring (Dia.5/8", 1", 1.5", 2", 3")