Fire Hydrant Cap 1) type: John Morris, Machino, Nakajima, ANSI PIN, Storz. 2) size: 1-1/2", 2", 2-1/2", 3", 4", 5", 6" Fire Hydrant capProduct Description: These series include many types: John Morris, Machino,Nakajima, ANSI PIN, Storz and so on. Product Feature:They can match with different fire hydrant which in the same thread and size. Materials: Brass & Aluminium Alloys. Size: 1-1/2",2",2-1/2 ...