BlazeMaster® CPVC is the most specified nonmetallic fire sprinkler systems in the world, offering easy installation, inherent corrosion resistance and excellent flame and smoke characteristics. UL-listed freezemaster™ antifreeze meets NFPA requirements for all new fire sprinkler systems and includes a corrosion inhibitor package unlike any other product on the market, effectively reducing pipe corrosion by up to 65 percent.