CamelBak Brush Kit
The CamelBak Brush Kit is an innovative way to keep your delivery tube and reservoir clean. Includes reservoir brush and tube brush for a complete cleaning solution.
I agree with the other reviewers; this is a must-have for cleaning your hydration pack reservoir and tubes. My pack has never tasted fresher (i.e. no taste at all).
The big brush is a bottle brush. The little brush is indispensable. Once your hose starts to get funky, there's no good alternative to clean it out. Worth it just for the little brush.
Best money you will ever spend. The tube brush is excellent in getting all the way through the tube. Money well spent.
Since it is difficult to reach into the bag, using the brush it is essential, especially to cleaning the tube.