Product review (1 stars): Defective
I have ordered these twice before and found that one in each package is defective. I have to reorder so I can get a second one to work.  Thinking the problem might be with the bottles I ordered two new bottles. It was the caps again. I called Essicks customer service and received about the same treatment from a rep who was just doing her job to collect a pay check, no help at all. In the future I will definitely rethink about Essick.  I also had a filter inside the tank collapse making a mess. If the caps don't fit properly they leak all over the floor and another mess to clean up.