I installed this in the kitchen sink cooling line 2 years ago as we were killing fridge filters and I didn't want the whole 'system' simplicity. It was also an advantage to see them in restaurants and shops. In general, I am very satisfied with the solution and the costs. I estimate they last about 5 months for a small family in the cold in the kitchen, but it depends on how much we cook before we notice a sudden flavor deterioration. It goes from tasteless to oh my god what happened here and now it's time to change the filter! Since then I've only changed it every 4 months and it never comes to that. Very happy with the cost, simplicity and performance.
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