I am very satisfied with these cartridges, tap water and filtered has no bad taste, I use the filtered water for drinking but also for cooking (cooking pasta, potatoes) but also for coffee, tea. And financially it's very interesting. Before I was using them in a hypermarket brand cartridges and it was not perfect because after 3 or 4 weeks the water began to have a taste I find there's not the case. Purchase therefore renew in the future.