On 27.10. I had the opportunity to install one of these filters in my PUR installation system for the first time. The water flowed out too fast to be filtered in any way and the filter came out on November 3rd. So I took another one out of the box and installed it, and it immediately flashed red. These filters don't work at all; makes me think they just reuse old, used filters. Luckily after buying these PU filters I found some branded PU filters and bought them and after installing one of the branded filters it works great. These filters are useless and a waste of money. Don't buy them!
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