Shortfill E-Liquids are large bottles of 0mg (Nicotine Free) vape juice with space in the bottle to add your own Nicotine Shots (Nic Shots.)

Shortfills are named as such simply because the bottle isn't filled to the top (they're 'filled short'), so a 100ml bottle for example will have 80ml of E Liquid and 20ml of space for Nic Shots.