"Works great. I do change it every 2 months. But I can tell when it is going bad because my eyes get red and itchy and the calcium builds up around the shower head. When I change it that goes away immediately. I soak the showerhead in vinegar occassionally to get the marks off ( Just the bottom portiom. I am just one person using it."
2 of 2 people found this review helpful.
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