I've been using this for 30 years since I found a small version of this in a motorhome shop. I don't think anything works better and it does so for a fraction of the cost of some. You'll need to buy a nozzle and faucet, but by the time you're looking, you probably already have them. They aren't that expensive that I would consider one of the cheaper specimens. I get LONG TIME from these cartridges and use them for all drinking and cooking water that I never have to replace in less than a year.
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