What the fudgies does that ultem insert do?First I seen of this, SXK Basic Style 22mm, can't find much about the authentic, a leak proof squonk atty;
http://www.3fvape.com/rebuildable-a...ainless-steel-22mm-diameter.html#.WhRJRUqnGCg
2fdeal has it for a couple bucks cheaper with a MAP code;
https://www.2fdeal.com/sxk-basic-st...e-dripping-atomizer-w-bf-pin-black_p3616.html
So very confused by this damn thingy.