Introducing the RTV-ADIS Inline Slate Vent Adapter from Timloc! This 110mm duct adapter is specifically designed for use with the Timloc Inline Slate Vent, so that you can provide your roofing project with a structurally sound and reliable connection. Has all the features you need, such as its ability to simply click into position over the spigot of the tile vent to ensure a precise fit to 110mm ducts or soil vent pipes, and its low profile design which allows for easy installation below the roof batten.