Product Name: Awwa C053 Wet Type Fire Hydrant with FM UL Certificates Model NO.: Wet Type Alarm Valve Diameter: 100mm Wet Alarm Valve Structure: Pilot Valve Type Dry Alarm Valve Type: Enclosed Type Closed Fire Sprinkler System: Preaction Fire Sprinkler System Open Fire Sprinkler System Type: Deluge System Automatically Opened and Closed Repeatedly: Can Automatically Opened and Closed Sprinkler Head Type: Open Sprinkler Installation: Pendent Material: Ductile Iron Certificate: FM UL Trademark: Kingworld Transport Package: Packing Export Standard Specification: 6" Origin: China Product Description AWWA C053 Wet Type fire Hydrant with FM UL certificatesHello my friend,How are you, this is Isabelfrom China, We are a professional supplier of fire fighting equipments, all have FM UL certificates.Looking forward to cooperating with you.Waiting for your news.Best Regards,Ares