... easily flushed 3.lower pressure drop,better fouling resistance Plastic Cascade Mini Ring is made from heat resistant and chemical corrosion ... (PP), reinforced polypropylene(RPP), polyvinyl chloride(PVC), chloridized polyvinyl.Plastic Cascade Mini Ring is made from heat resistant and chemical corrosion ... *37*3342068.49092.9112.3 PP,PVC,CPVC ,PE plastic cascade ring for chemial tower