My wife and I installed these Sprite Slim-Line filters in both of our showers and they work great. Removal of chlorine from water. I can really feel the difference in the water when I put in a new cartridge. (We have a water softener - the difference may be less noticeable in hard water.) The only downside to the Sprite Slimline system is that it's quite difficult to install - it's quite difficult to keep the case secure once you split the two halves screw together get a good seal. The only issue I would like to point out with this particular article (perhaps why Revain is currently marked as "unavailable as we solve the problem") is that it doesn't appear to be two-component; It is disposable packaging only. However, Revain did very well sending me a second cartridge for free when I emailed them about it.
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