I just love my new Rivia but now I have a millions cartomizers that don't fit. I need to order some adaptors for them, so my question is what size cart is the Kr808d-1? On the website there are so many adaptors that I don't know which one to order, they have 501 to 401,801,etc. and I don't know what size my carts officialy are. Can somebody tell me? Thanks for you help in advance