GRPA Flexible Pipe is designed for coupling directly to Manthorpe's slate vent oval spigot, it can also be easily trimmed to fit other types of terminals with a round 110mm diameter connection. The flexible pipe can be used to couple to a 4" soil pipe or mechanical extraction equipment and is supplied with its own metal screw clamp for simple fixing. Fits the oval spigot of the Manthorpe Slate Vent Can be trimmed to suit 4" round connections Flexible pipe length of 455mm Connects to Manthorpe's tile vent range Can be used for mechanical extraction