... Plastic pall ring:Plastic Pall ring can be applied to various of device of isolation, absorption, deadsorption, constant ... isooctane separation and desulfurization system etc.We are able to offer these in a variety of plastic: PE, PP, RPP, PVC, ... ); 1" (25mm); 1.1/2" (38mm); 2" (50mm); 3" (76mm).Technical data of Plastic pall ring: Diameter (mm)Dimension ... Dia.5/8", 1", 1.5", 2", 3" Plastic pall ring