I did a search on bunnings website and could only find 2ft tubes not the 18 inch ones i need but will definately try in person this week some time.
In the mean time I have put a blue plastic filter between the 10.0uv tube i have (spare from my beardies) and the enclosure mesh top to minimise any possible damage to the snake caused be excessive uv, as well as giving the enclosure a nice light blue glow. Would have thought the plastic and the mesh top would filter out most of the uv.
All that being said I would really prefer a normal tube and save the expensive 10.0 for my beardies