Suitable for use with the Worcester Bosch Greenstar condensing boiler range. This standard telescopic flue from Worcester Bosch is ideal for use with compatible flues. It provides an effective solution to expel acidic flue gases. With white aluminium on the main extension and a black terminal end, this robust telescopic flue is the standard choice for normal installation through a domestic property wall. Quick and easy to install, the flue pipe features push seal jointing and positive fixing screws providing a simple system to set up, and one which will last the life of the boiler. The flue can be extended to the length of choice, between 350mm and 570mm. Compatible with Worcester Greenstar boiler range. Easy to install. Efficient removal of acidic flue gases. Expels directly from the rear of the boiler. Compact and discreet design.