A1, A2 , A3 doesnt matter, I know that now. It's just a matter of how packed the charcole is I believe. You will be fine with A1 - A3 from what I know.
This was an A1 (probably the cheapest one, because then it will have minimum required charcole in it), the one I intend to buy is also A1 , or A2 I think. But much higher quality.
This was an A1 (probably the cheapest one, because then it will have minimum required charcole in it), the one I intend to buy is also A1 , or A2 I think. But much higher quality.
