The Graphite 5 (GR905)902 (HF5902) Glass Seal is the genuine glass rope seal for your Hi-Flame Graphite 5902. The 3mm self-adhesive format makes replacement clean and straightforward: remove the old rope, clean the channel, and press the new seal into place. Keeping this seal intact is important for airwash performance and maintaining a clear view of the fire. A small part that does an important job.