How to add another gas hook-up at outside kitchen ?

[Bean]

I have a 2013 Springdale 294BHSSR and it has a gas connection for the stove on the outside kitchen.

I want to add another gas connection so I can use a grill at the same time.

I can use the grill now as it is, but then I can't use the stove.

Any idea where I could get the right connector ? I can do the steel piping myself (tee and elbows) but I don't know where to get the actual connector from.

Any help would be appreciated.

Thanks,
Bean