Most cartos, yes - you need some
juice, you pop off the little white cap thingy,
View attachment 230628
and dribble in as many drops as the filler will absorb - keeping juice OUT of the center tube area.
Or, people will drown the whole thing, filling up the rubbery cover they come with and pushing the cart into it, then blowing out excess.
(sometimes called the "condom method" of filling)
You can find a hundred Youtube videos to help too!