Concrete box with lock

[EagleLandscape]

What should I be looking at spending to get a concrete box that is lockable?

I will need to house a 2" ball valve inside one, and prohibit it from being changed.

[Wet_Boots]

What should I be looking at spending to get a concrete box that is lockable?

I will need to house a 2" ball valve inside one, and prohibit it from being changed."Changed" - as opposed to stolen? You know they do make ball valves with lockpads on them, like they have for gas valves.

[mikecaldwell1204]

http://www.carsonind.com/PDF/Util_Infra/M_36%20vaults.pdf