Increasing adapter to stove pipe (4-5 inch) - Twin wall flue

Adapter used to change from 4 inch vitreous or stainless steel single wall flue pipe to 5 inch twin wall flue.

Can be connected straight onto an appliance.

Class 1 twin wall insulated stainless steel flue system.

• 30mm of Rockwool insulation.
• 40mm overlap
• Designed for condensing and dry applications (Condensing application requires use of a joint seal for each junction.)
• Used for domestic heating, domestic hot water, industrial/commercial heating, biomass boilers, open fires, bakery ovens.
• Use with gas, diesel, solid fuel, biofuel.
• Laser welded joints
• Requires a locking band