4" to 5" Increasing Adaptor

Our Price: £26.45 Incl. VAT: £31.74

Availability: In stock

Product Code: IA1605

4" to 5" Increasing Adaptor (Single to flex)



 Ultraflex components


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.


Increasing stove to Flex adaptor



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.


Building Regulations

Download Building Regulations Document J (effective October 2010) below

Download Document J

(Right click link, then select "save file as..")