which fina kit ?

[jsamons]

I have made fina once before but want to make with the belt this time(20 doses). How do I know which kit to order from synthol to make 2x as much. I just see the 1 kit for the 10 dose? I want to make 50ml's of 76mg/ml. Can I just ask them to add more oil and alcohol?

I know I need the 4g one but I didn't see them at PNPose