I have a pair of Hunt wheels and they work fantastically, bonus points because they are “always on”, pedestrians are aware of them, but are never surprised.
Note that the worst kind of canal towpath cyclist is the one who slows to a crawl and creeps behind me for minutes sometimes unnoticed, biding their time for a passing spot with lots of space. Just ring the frigging bell and I will stand out of your way for the 3 seconds it takes you to get by!