Why not ask someone who has an interest in doing the job for you? It's free to have a pro in your town identify the unit you need, and you will need him to order and install it anyway. None of us can see the unit or the application, and many here are coming home after work and looking to order new units for THEIR customers.
I think you can get the info you need a lot faster that way.
[Avatar photo from a Florida training accident. Everyone walked away.] 2 Tim 3:16-17