Vegetable Glycerin is similar to that of Propylene Glycol. It is also used for cutting of e-juice. Some people prefer Vegetable Glycerin as it has some different properties.
For reference: VG has a weight of 1.26g/ml - 1000g/1.26=793.6ml
NB: Non Childproof Sealing cover PET bottles
DOES NOT SHIP INTERNATIONALLY (due to low value and high shipping costs) - New Zealand sales only