I bought the Kanger Mini Protank II and the pull is so nice, so open, because it has a completely different design with 2 large air holes.
I know I can just buy the aerotank or nautilus, but maybe their is a way to open the air hole I have now for my PT2, PT3, and 30B? I cant understand where the air hole is.
If this is where the hole is, I can drill it out, but that does not make sense b/c that goes inside the threading.
Any help is appreciated

I know I can just buy the aerotank or nautilus, but maybe their is a way to open the air hole I have now for my PT2, PT3, and 30B? I cant understand where the air hole is.
If this is where the hole is, I can drill it out, but that does not make sense b/c that goes inside the threading.
Any help is appreciated
