Hey Molothi.. Welcome!
Yeah, I think the only way is to actually ask the manufacturer, or second hand info from someone that has already inquired about it.
This issue came up in the "List of Suppliers" thread and it's pretty much unanimous that this is info that needs to be known. Hopefully soon, we can have all of the info compiled into one spot that will make it more convenient for everyone.
Sorry, we couldn't provide you with a better answer.