PVC schedule 80 fittings, 150 series unions. For use in pressurized fluid handling systems, such as agricultural and landscape irrigation, chemical processing, industrial, food and pharmaceutical, semiconductor, municipal water distribution, sewage treatment and residential wet fire sprinkler systems. Produced from PVC type 1, cell classification 12454-B. Threaded fittings meet ASTM D 2464 and socket fittings meet ASTM D 2467 standards. Solvent weld socket (IPS) x male iron pipe thread.