Hi Dave,
The VSV I replaced was attached to the canister (or was supposed to be, it's in a tough location that's exposed to the elements and the mounting bracket had rusted out). It's referred to as the VSV for the VPS (vapor pressure sensor) and has 3 hoses connected to it. It's located up under the rear of the car along with the evap canister.
There's another VSV in the engine compartment called the VSV for EVAP and only has 2 hoses connected to it.
Let me know if you have any more questions.
EdW