The flue is a vent which allows the extraction of steam and combusted gases resulting from the boilers normal operation. There are varied models of flue which are dependant on the appliances location in the house and what model of unit is fitted .
Comes with O-rings and screws
Technical specification
Waist Sizeaa29cd14gvTypeTerminal OutletColourBlackSupplier Part Number87161112090Brand NameWorcester Bosch