https://www.ebay.com/itm/Authentic-14mm-adapter-Attachment-for-Xmax-Starry-and-Xmax-Fog/162979803093?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m1438.l2649
this fits my carts perfect with a ccell battery (curved and round ends) fit 14mm
I use this with a mini bubbler with 2 small corks when I...