Is there a way to be notified next time these come up?
If you sign up for an account on WootStalker, you can set up key word alerts to get email notifications when an item goes up for sale. If you add a keyword alert for “LifeStraw”, you should be covered.
Hope this helps.
Note: You may need to go to your Account Page after signing up.
Just a heads up, these are back for sale: