We bought and installed it in June 2018. Filters are rated for 100,000 gallons of water. My wife and I use about 2500 gallons a month (up to 2100 some months) so we're going to think about it for at least another year before replacing it. That's very valuable. Our water is much cleaner and not cloudy since we installed this filter. We did not find any pressure drop. The thing just sits there and does its job. I would buy this again in a heartbeat.
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