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Fire Protection Di Grooved Pipe Fitting/Coupling Plumbing Connection. 10-Year Warranty: Comprehensive 10-year warranty coverage for peace of mind. FM & UL Certified: Meets strict FM, UL, and CE safety standards for fire protection. Ductile Iron Housing: Constructed from ASTM A-536 grade 65-45-12 ductile iron. 300 PSI Pressure Rating: Rated for 300 PSI (2070 kPa) working pressure. Customizable Options: Custom coating, color, gasket, and bolt options available. 24-Hour Support: Dedicated 24-hour after-sales service for technical assistance. OEM/ODM Service: Full OEM and ODM customization services provided. Versatile Gasket Choices: EPDM, Silicone, or Nitrile gaskets for various media.