The short side goes into the opening of the register plate. Used to attach flexible liner to vitreous stove pipe. This can be adjusted in the sleeve up and down.

Underside - centre of the registry plate

Brilliant stove pipe to flex adaptor with a built in plate that fits to your register plate, this allows for the flue liner to be fitted first and your stove and stove pipe at a later date.

Also known as a ‘Top hat adaptor’ this product is ideal for fitting stoves at a later date or allowing the existing stove to be removed once fitted for maintenance due to the sleeve built into the adaptor to allow the stove pipe to slide up in and down. Highly recommended on all installs.