This clamp is suitable for 6" flexible liners and made from quality stainless steel. The clamp sits on top of the top plate and clamps the liner tightly.
Normally used with a liner clamp and liner insert.
The place is secured / flaunched to the top of the chimney (under a pot). An insert needs to go inside the top end of the liner to prevent crushing, before fitting the clamp to secure.
Please note: This method is normally used if a chimney pot is not currently in place. This system of fixing is totally enclosed (bar the cowl if required) inside the chimney pot.