Good replacement for salt-based water softeners
919348
I have used salt-based water softener units for many years.  To be able to drink tap water requires installing a line from the water main into the house.  Refilling the units with salt has always been inconvenient, so I decide to try the NuvoH2O unit.  I liked it from the start.  It was easy to install (once I ran the proper piping and elbows).  I replace the units about every 6 to 9 months.  We don't use that much water in the house, so I don't see the need to replace the units as often as the company recommends.  I've never had any problem with the unit or the replacement cartridges.  After using the salt-based units for many years, the water does not seem as "soft" as I expected it to be, but I'm happy with the unit overall.
412100
I love these filters I am on about my 4th one they seem to last around six months for me. I use my water softener to count the gallons and so far this filter has really helped with reducing scale and sediment in my shower heads and my sinks. I can tell it's doing the job because it when the water pressure goes down and I replace it it seems like the pressure goes back up which means its doing its job and collecting impurities from the water. I have this plugged in before a water softener and it seems to be doing a great job so far. It's a little more pricey but it does take some of that smell of chlorine out which I'm very happy with.
4289388
My water is heavy with chlorine and it's hard water too. I put on a simple whole house filter which seemed to catch most of the dirt and maybe filter a little chlorine. I didn't want buy a expensive water softer/conditioner so I gave these a try. And after a week of using them I'd say they work. Skin feels better, hair is softer, no more smelling like a swimming pool when showering. The install was really simple although I have a plumbing/hvac background. I didn't use the teflon that come with it, I used some better stuff made by Blue Monster. No leaks at all. I would recommend this product to friends.
1087292
I love this new method of water softener.  I do not have to buy all those heavy bags of salt each month.  The cost of the salt each month is about the same as the filter every 6 months.
2394639
We've had this filter for a couple of weeks now. It changed our Texas tap water, which smells like algae and chemicals into a much purer water. The smell has completely gone now and the water feels purer and tastes great.

Ideally, you pull this faucet button that comes with it so water diverts into the filter, and once you close the faucet the button automatically releases itself back to the original state where water flow goes directly to faucet (bypasses filter). This unfortunately stopped working after just a couple of days, and we now have to manually push back the button to divert back to faucet. It's not a biggy, but this is the reason I didn't give 5 stars.
773524
Great when you can't put in a fullsize water softener. I notice a huge difference in the amount of soap needed to produce a good lather.
272522
Having well water with a high mineral content we cannot use the ultrasonic humidifiers (too much white 'dust'). Being that we have to use the cool evaporative models, finding replacement filters for earlier models isn't easy. And if you can even find the original filters, most sellers want and arm and a leg for them. We found these replacements for our older ProCare and Relion humidifiers and they are just like the originals, only MUCH less expensive. So glad to be able to keep our older humidifiers and, with these new filters, be assured of clean humidified air.
3268274
This is the only salt that I use in my reef tank.  Have uses some of the other brands and I did not care for them too much.  This salt mixes well, and the levels are well within the levels stated on the bucket.  I do weekly 6 gallon water changes on my reef tank and I don't have to add too much of the 2 part to make up for the losses due to coral growth or the coriline algae growth.
3049502
I have used RENU cartridge system for our spa for several years.  It gives a "softwater" feel to the water, and does not require using either bromine nor chlorine. Key to keeping the system working correctly is to maintain the proper balance.  I use these strips every other day to make sure that things are working correctly.  If not, I adjust the shock treatment accordingly.  Through experience, I found that these strips are essential.  If I wait until the system is way out of balance, it becomes difficult to correct and I risk odors and cloudiness.
876663
I can really tell a difference in the quality of the water after passing through this filter. Our water quality is not good here, so I'm really glad to have it. Less soap is needed also. I wish you would make them available for the washing machine, kitchen and bathroom sinks, and refrigerator ice machine.
933138
We have been using the ZeroWater products for some time and have been very pleased with the results. Our water has very high TDS levels (>500). The filter does bring this down to 0 ppm but the level gradually rises with use. As our water has such high levels of TDS the filters do not last long and are expensive (hence the 4 star rating). This is the most reasonably priced replacement we have found.
114025
Works great.  What a savings by using salt instead of chemicals.  It is not hard on the swim suits, and doesn't turn blonde hair green like the chemicals did.  The pool stays much cleaner and clearer than it did with chemicals.  Much less fuss!
378516
When we moved into our rental (at sea level), we were stuck with an old well with a broken water softener. Our toilets, sinks, showers, everything is stained red with iron. I already have high enough iron in my blood, but we weren't about to invest in a whole house filter, so we bought some counter-top filters. The perfect-zero filters did the job, but we were going through one every two weeks, which was the same cost as buying bottled water.

I built a system with this filter, following some simple youtube videos, about 8 months ago. I haven't cleaned the filter once. If iron was getting through the filter, it would show up in our glasses (As it oxidizes and turns red). I'll let the pictures do the talking here. The bucket on the left is the top bucket, which used to be as white as the bucket on the right. The bucket on the right is the clean water we drink. We have done ZERO maintenance in 8 months.
41393
We often get up in the night to get water so this was put on one of our sinks in the master bath.  Love the under faucet design -it doesn't stick up in the air like another one we use.  In our research on the Pur products, we found out that both our Pur faucet water filter systems use the same type filter.  This was a plus for us...less types of filters to purchase and store.  It was a main factor in our decision to purchase this unit.  The faucet units offer two types of filters.  One type uses their MineralClear technology which filters water over natural minerals for a crisp, refreshing taste. The premium carbon filter is certified to reduce lead, mercury, chlorine (taste and odor) and many other contaminants. It also removes 96% of trace levels of pharmaceuticals.  The second type filter (and less expensive) reduces lead, mercury, chlorine (taste and odor) and many other contaminants. It also removes 96% of trace levels of pharmaceuticals.  You should know, however that neither of these filters reduce fluoride which has come under fire lately as unnecessary (European  countries banned it from their drinking water years ago) which is why I gave this filtered water system  4 stars.
2722891
I live in southern New Mexico, where sand is our terrain, so I figure we have our share of sand in our water, along with other solubles. These filters are easy to install, and because I live alone (not a lot of water usage), I change them out about every 2 months.  Because of their low price, cost to use them is nominal for me.  And, they might last even longer each time, but I change them out when the filter shows just a slight yellowing color to them.  Set you own schedule for replacement.
3153836
Perfect replacement.
Better, actually, than the one it replaced.
This is used for my Culligan brand Water Softener.
The control box requires 24 vac, at 1/2 amp.
This thing is even stronger.
4636609
Five star unit that works quite well for measuring the hardness of your water in order to correctly set your water softener.  However, If you want to measure the softness of your water *after* it has gone through the softener this is NOT the tool! The unit will measure the sodium that the softener replaces the hard minerals with and will result in the same, or slightly higher readings after softening.

When this happened to me I darn near replaced my water softener because I thought it wasn't working. The facts on this were difficult to find - this is the response from the seller:

If you're measuring the TDS immediately after a water softener, it would make since for the meter to measure the same or higher. TDS meters measure the total dissolved solids, but they can't differentiate between what actually makes up the TDS. So when a water softener exchanges the hard water ions for soft water ions, the TDS meter can't tell the difference between the two.