Funnel Prop

If you make your own juice, and use a funnel, you know the pain of filling 120ml bottles. This is a little prop that allows air out, so that your VG will flow nicely.

V2 has a little collar that will go down the neck 2mm so that the prop won't fall off. V1 is just a disk.

Printed with 100% fill, .2mm layers.

20mm outside 10.5mm inside 3mm thick