Local source for line cleaning brushes

[Garak]

Yet another local source question. Where can I find brushes to clean 5/16" and 1/2" tubing?

I've got a number of tubes that are getting too dirty to use and soaking in oxiclean doesn't seem to be doing the trick.
--
Garak

[NASH]

Yet another local source question. Where can I find brushes to clean 5/16" and 1/2" tubing?

I've got a number of tubes that are getting too dirty to use and soaking in oxiclean doesn't seem to be doing the trick.
--
Garak

Soak them overnight in a 200ppm bleach and water solution. If that doesn't clean them I'd replace with new.