Chlorinated Polyvinyl Chloride (CPVC) is simultaneously light, tough, and exceptionally corrosion-resistant. CPVC is highly resistant to acids, alkalis, alcohols, and many other corrosive materials. With its ability to withstand higher temperatures than PVC applications, CPVC is used in media temperatures up to 210_F (intermittently) and can typically be found in hot water systems, hot acid distribution, and waste systems.