Telescopic pipes can be used to adjust the height of the chamber. Meltex telescopic pipes are available with or without a cast iron cover, in which case an RST cover or a PE plastic cover can be used. Smaller 160mm and 315mm telescopes are also available with a 5t plastic cover on request. Telescopes are available with pipes of 160mm, 200mm, 315mm, and 500mm. The standard lengths of Meltex telescopes are 750 – 2000mm. In addition to standard sizes, telescopes are also available as custom orders.