I bought the filtration system here and already gave it a positive review. I have not yet purchased a replacement reservoir but it is fair for me to review this because the identical item comes with my system which i really like. Mostly I wanted to post a positive review to express gratitude for replacement parts for this system. Not enough companies do this. I can see that this item might wear out over time and plastic often cracks when it gets old. So it is good that a backup will be available for when I will need it.