Register plate adapter – 5″ ( 125mm ) rigid to 5″ ( 125mm ) flex
flexThis adapter is installed at the bottom of the chimney to a register plate.
It has a 5inch (125mm) connection on the underside of the 300 mm x 300 mm plate that fits into the single wall flue pipe.
It has a 5 inch (125mm) connection above the 300mm x 300mm plate that fits into the flue liner.
Ideally the 300mm x 300mm plate will be fixed to the top side of a register plate