Increasing adaptor used to connect 4" single skin stove pipe to 5" flexible flue liner at the bottom of the chimney stack.
Made of 316 stainless steel.
Same day dispatch on all orders placed before 2pm.
Secure the bottom of the liner to the adaptor using self tapping screws and seal with either fire cement/silicone sealant. Use the same procedure to connect adaptor to your vitreous/single wall flue pipe.
Download Building Regulations Document J (effective October 2010) below
(Right click link, then select "save file as..")