I have a flue brush, whether on not it's similar I don't know. Anyway, it's well old now, still in good nick and seems to do a reasonable job. Recently had the 15 year old flue out to replace the collar and there was no significant build up. That said, I burn only smokeless solid fuel and don't suffer from tar, which might be the difference. Actually, if it becomes necessary to follow rules and start burning fully seasoned "ready to burn" approved logs, it's probably worth considering switching to solid fuel, which stays in longer and also takes up less storage space.