I switched to them after using Dupont and 3M. What these guys are selling is borderline criminal. Your filters are a sham. To kid. In fact, they are paper filters with a thin carbon coating. THESE filters are made entirely of granular carbon. I have well water in Minnesota and we get hydrogen sulfide in our water. (harmless in small amounts; smells like farts) Water also stains filters brownish/orange. I get 1 week to a month of this with my old filters and I always smell farts in the water. THESE filters. Oh my God. I forgot to replace them. They last so long. 4-9 months? We've been having water pressure issues lately which have been getting worse. I finally fiddled with the well pump and pumped some air into my hydraulic tank. Didn't fix it. I checked the water filter. This thing was just covered in orange-brown shit. How did the water get in there? Replaced the filter with a new one, voila. water pressure back. The amazing thing was that until now we had NEVER smelled a fart. Even if hardly any water seeped through the filter, it still worked. I love these filters and hope they are always available. Damn it, buy it already. 3M, I know that makes me a bad Minnesota, but you should be ashamed. that you sell such crappy filters at such a high price. Go to the naughty corner.
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