1)  Unscrew to remove the top hardware

2)  Detach the used glass tube with the base hardware

3)  Put a new glass tube into place

4)  Screw the top hardware into place


It is different when changing the glass tank of Standard version and TPD version.

For TPD version, which is child-resistant, you will need a small tool (supplied) to release the top hardware and change the glass.

change glass of Tigon tank