Hydrant spanner is a tool for opening valve of fire hydrant: Material: brass, aluminum; Size: 1.5" , 2", 2.5"; many types. hydrant spanner is a tool for opening valve of fire hydrant; may be simple spanner, box wrench, or adjustable wrench, or a specialized tool for use on "anti-vandalism" valves.A) Type: Storz type, Ansi Pin type, John Morris type, Nakajima type, Machino type and so on.C) We ...