Tristar cannisters are relatively cheap and plentiful but the powerhead is another matter entirely. They break much more often and can be expensive to fix or replace. I thought it might be smart to find an adapter that would allow attaching a non-Tristar hose (whatever is the most common size perhaps) and then you could attach anything you want to that hose. I heard the Kenmore Whispertone that is older than 10 years has quality parts. Its mainly the powerhead that matters of course but even the Tristar hose is outrageously priced. The key is to bypass everything after the cannister with an adapter.
I wonder what the most popular powerhead for a cannister vacuum was a few years ago (that was of reasonable quality). You need something built well but is plentiful on the used market. Also another option would be to search for a model where the cannister tended to break down leaving the user with a bunch of parts they couldn't use.
I wonder what the most popular powerhead for a cannister vacuum was a few years ago (that was of reasonable quality). You need something built well but is plentiful on the used market. Also another option would be to search for a model where the cannister tended to break down leaving the user with a bunch of parts they couldn't use.