FA15 Alkaline Inline Water Filter Cartridge, NSF Certified

Perfect but little on pricey side to other options. I wanted something to add to my 6 stage RO system which comes out at zero for my reef tanks. As I now live in a very hard water area with no reservoirs the water smells and is awful up this way. Added this to the side to which I divert the water for drinking. Comes out at around TDS 82 perfect and even better with a slice of fruit.

This is our second time using the iSpring & there is a noticeable taste profile difference which highlights a difference in quality between a cheaper brand. If it didn't make a difference we would buy a cheaper brand. Lasted the stipulated time, water still tasted good. Just replaced it as it had hit the 12 month period. Obviously different water quality will impact its longevity. Water is back to fresh spring tasting perfection. Installation is easy. turn tank off, open faucet, disconnect old filter insert new one, turn tank back on, run water through it, test it with TDS meter, enjoy. No mess, no fuss straightforward. Soft in the mouth like water from a fresh spring on a long hike. Refreshing like in Psalm 23.

I've had my 5-stage iSpring for several years and have been pleased with the taste. While I think we're not meant rely on our drinking water to get our minerals, sometimes I get questions of concern from guests. Word to the wise: best not to even mention that your water filter is RO. Sometimes people think it's distilled water. Ugh. Anyway, I bought and attached this sixth alkaline stage and did a before and after taste test. The 'before' was just as good as ever. The 'after', now going through the filter, has a slight brightness to it which, while not a huge difference, is to my taste buds preferable.

Does a great job, but would benefit from having a zinc component.

Be sure flush it for 5 mins before use. Added 20 TDS to final output and ph went from 6 to 7.5, for aquarists, GH is 5° and KH 8°.

Works with my 6 stage reverse osmosis watering system.

Definitely add something. From 10ppm to 130ppm and also on pic you can see the test results. Ph and carbonate changed rest of same as without.

The water that comes out of this filter is milky with fine white dust. See the photos. It's saturated with some white dust. There is no way this is healthy. The water tastes like you're drinking dust. The photos are after the filter has been flushed for 5 min + 10 min + 5 min again and after one day of normsl use. So it's not a problem of not flushing it enough. My guess is this is going to give you kidney stones. But even if not, drinking this dusty water is unpleasant and I can't imagine it to be healthy.

Llevo varios años con esta marca de filtros y no defrauda . El cartucho de filtro iSpring FA15 ha sido una gran mejora para mi sistema de filtración de agua. Se nota la diferencia en el sabor, eliminando cualquier rastro de cloro y dando un agua más fresca y limpia. La instalación es sencilla y el rendimiento es excelente. Dura bastante tiempo antes de necesitar reemplazo, lo que lo hace una opción conveniente y económica. Además, su compatibilidad con sistemas iSpring lo hace ideal para mantener una filtración de calidad. Si buscas un filtro que realmente haga la diferencia en la pureza y el sabor del agua, este es una gran elección.

This filter is good and will buy again

I use a sediment cartridge, carbon cartridge, ro membrane and dionizer resin bed filter with this Alkaline and mineral filter and its been working great. I use the rodi system for my reef tank, but since rodi water is essentially stripped of everything bad and good things, I could not use it for drinking purposes, so I bought this filter to remineralize the water and it did. the rodi water had 0.01 tds, and after running it through the alkaline filter, it went up to 0.14 which means I have minerals again essential minerals. The Ph was already pretty good at 7.6-7.8 but after running it through the alkaline filter it went up to 8.8-9.0, and as you may or may not know alkaline water is great for you as apposed to acidic water, and since your body is made up of mostly water it makes sense, anyway iam rambling here, so to wrap up I am very happy with the results.

Tip 1: Flow arrow is a clear engraving and easy to miss. Don't rely on the sticker label orientation in comparison to the video, which some say can be reversed. Tip 2: My TDS went from about 10-15 (iirc) to about 50-65 (My tap is 400TDS). Perfect for me. This TDS tastes great to me. EDIT: placing in front of tank, TDS dropped to 30-35. Not sure if this will cause scaling in the tank though. Tip 3: Took me about 1 minute to install. It's easy if you know how to release the quick connect. I did it in-line to the tank for now, but understanding there's maybe a few oz in the cartridge that will sit and overmineralize. I'll move it to before the tank if it bothers us as it does for some others. EDIT: I've heard of 3 different ways in the reviews to install this alkaline cartridge lol. The 3rd way is after tank but before polisher. Just different tradeoffs. No one has provided an argument for which is definitively best.

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