Hey Patrick,
That's a Parker made valve. Parker does make some ok stuff. But tell me more about how you would want to use it? Of course im sure for Co2, But tell me about how you want to set it up? There are concerns I would have with this unit. You can get for about and around the same money these go for a "Full" Single or possibly Dual stage regulator. Tell me more what you want to do with this unit?