It can be either t1 or t2.
It goes like this
FAS2200 Series t2 or r3
FAS3000 Series t1 or t2
FAS6000 Series t1
You can add a ssd and sas to the 2200 to make them for t1 data if you want. It just depends on how you configure it.
3160 is a good box, but I would go for the 3240 or 3270
Where have you got it from?
Tier table for older models is in https://fieldportal.netapp.com/DirectLink.aspx?documentID=49422&contentID=63926
For newer models as far as I know there is no tiers any more, rather order numbers are model specific.
What particular price are you after - is it for Operations Manager (Add Node) or something similar?
For other features (like protocols) tiers are irrelevant from what I know - you just have model-specific price.
And one more thought: you should always treat list pricing with a pinch of salt, as the actual sell price should be (more or less) generously discounted