Sabetoflex 250mm Low Pitch Wood Burner Outlet - Anthracite Sabetoflex provides the perfect collar and flashing combination for wood burner flues with a diameter of 250mm. Properties Length: 1080mm. Width: 685mm. Diameter: 250mm. Roof pitch: 7° - 32°. Colour: anthracite. Operating temperatures: up to 400°C. Material: wood burner outlet - metal. Description Unlike traditional metal collars, up to three of which are needed to cover all pitches, Sabetoflex collars can be adjusted to suit the pitch and can be used just as effectively on flat and green roofs*. Sabetoflex kits come complete with a pre-installed Wakaflex sealing collar which provides an airtight seal with the roof. This offers a far better solution than standard lightweight metal fl ashings which provide no overall seal and can be inadequate on low pitches. The Wakaflex plate is provided with butyl strips around the edge for easy fixing. Installation For correct installation, please ensure that there is a gap between the pipe and outlet. This is a mandatory requirement, especially for wood burners. Application For sealing wood burner flues.