iSpring WCS50KG+RO5004F, Whole House Water Softener & Under Sink Reverse Osmosis Water Filtration System, Reduce PFAS, TDS, and Lead, Complete Softening and Purification Solution for the Entire Home

So far so good. Arrived on time and was simple enough to install on my own. There was a minor hiccup with some damage on delivery, but Robert from iSpring was able to help me out with getting replacement parts. It was super easy to get a hold of support at iSpring and Robert was quick yo respond to me. Definitely would recommend this water softener and the company.

Called iSpring to get parts and Sean picked up the phone for customer support! No automated obstacle course to get help. He sent the parts and I received them in a couple days. Really like the great service and got iSpring up and running!!

I bought ispring’s WSP100ARB Spin Down Sediment Filter, WCF200K Whole House Filter, WCS45KG Whole House Filter, UVF55FS Whole House UV Filter. After installing the system, water quality improved significantly — hardness is gone, mineral content is much lower, and it’s clearly protecting our appliances. Lab tests before and after confirm the softener is working as expected. What really stood out was the customer service. Francis was fantastic. They were knowledgeable, patient, and went out of their way to help me over email. You can tell they genuinely care about making sure customers are taken care of. Highly recommend both the product and dealing with Francis!

While the packaging seemed all intact and undamaged, when I opened it I found the white plastic drain nozzle in the side of the salt holding tank was shattered. It probably does not take much to do since it is just a protruding plastic piece and there did not seem to be anything really protecting it other than the cardboard box. I completed a support ticket since they were already closed then called them the next day. Their CS guy seemed very bothered that I contacted them and sent me an email where I had to resubmit all the ticket information and copy of the Amazon invoice. I explained that the order number was included in the ticket submission (which their system prompts to enter) and he said "I am not Amazon" and said he needed the invoice emailed to do anything and "tomorrow is New Years" as if I should not expect much (despite them being open and supposedly available). I get that iSpring does not care, but spending nearly two thousand dollars on a softener and filter system, taking over two weeks to receive it, then arriving broken and customer service acting imposed upon to offer any assistance means I will avoid this company in the future. If it did not inconvenience me more than them I would return it all and go elsewhere.

I just deleted my prior view. I won't go into a whole lot of irrelevant detail, other than to post this update:1) My household water with the 50KG unit installed decreased water hardness from 10 gpg to less than 1 (almost unmeasurable) gpg. The unit works great!2) If the unit arrives and is not upright (mine came strapped on crate on it's side), refuse shipment (see the manual). It's possible to put it into service, but you may be struggling to fix the unit to do so.3) Test your water before and after the unit, using the "soap test", and/or a chemical test like the Hach 5b test, to be certain the unit is actually softening your water, as well as to provide proper gpg input of your hardwater, when you configure the unit's electronics. FORGET the TDS/PPM units advertised on Amazon for hard water testing. TDS and PPM won't tell you how your water had changed. It was accurate (i.e. 170 PPM) for testing the water hardness, but the "after" test said it was now 145PPM. Yet, the GPG dropped from about 10 gpg to less than 1 gpg (i.e. very soft water).4) Installation: Use ** BOTH ** iSpring's video and the directions when installing. Reason? There are elements included in one that are missed in the other, and vise-versa. It should be easy to install and configure, but it just isn't. There are multiple, confusing steps for starting the initial resin tank wash, and first manual regeneration, that I found ... problematic. Kind of like learning a series of dance steps. There's a "balloon" (i.e. vinyl spacer) that needs to be removed - don't forget that. This 50KG unit required three, 40 lb bags of (Morton) salt pellets to start. (Maybe a fourth would have fit, but 3 bags gets you over 2/3's full.)5) Installation #2). One question I never saw answered is what sort of supply thread fitting was required to mate your supply pipes to the 3/4" or 1" unit's poly connections. It's NPT. FEMALE NPT (i.e. FPT, FNPT).6) Customer Service: Their response was always prompt and cordial. John helped answer a few "newbie" questions, and Nick (Manager) helped out also. The only "ding" I had was that when I explained that the PPM test I was usnig showed only a 15% improvement, the response was the discussion about TDS vs PPM, vs hardness. When I put the question directly to them about what test I could use to actually verify the before/after results of this unit's install, they were vague. "Most people feel the difference" is true, but subjective. "Send it to a lab" might be valid, but when you're about 10 days short of the Amazon return deadline, sending off a sample and waiting for the analysis, isn't really the direction I was looking for. As I mentioned in #3 above, there are a couple of tests, one is free, the other is not, but it beats both the cost and timeline of a lab test. But again, I thought the customer service response was overall terrific. It's nice when you open a ticket or place a call, that someone in the USA actually answers the phone (not a recording), or when you escalate a ticket, a manager picks up the phone and calls back within about 20 minutes. Can't beat that.I'm not the "average customer". Most folks are looking for the type of verification that I was seeking. However, I've been burned before on water treatment units, and wanted to be certain that I was solving the problem with this unit.

I purchased this 5-stage RO system (iSpring Model: RCC7P) to solve the terrible tap water I have.The municipal water in my town is terrible, quite hard at about 17 grains per gallon, with a substantial chlorine/chloramine (smells like a swimming pool) odor coming from the tap.Fantastic full color instructions and all necessary parts/tubing were included, which I followed to the letter. I'm comfortable with home plumbing, so I had no issues with the initial installation. Installation took maybe an hour or two. For those unfamiliar with push-connect fittings, you need to get a relatively straight cut on the tubing or it may not seal. I recommend either a dedicate tubing cutter or a box cutter.The main 4 stages of filtration in this particular model (RCC7P) are fed from the water main cold line, and the output from stage 4 splits to both the final 5th stage filter (final carbon filter for taste), and to an accumulator tank (more on that later). This layout ensures that the water from the tank flows through the final filter, so you don't get tank flavor in your output water. Output of the stage 5 filter goes to the included tap for dispensing. I opted to separately purchase and install an additional Y splitter after the stage 5 filter, so that I could connect my fridge's water line for the ice maker and water dispenser built into the fridge door.After getting the system all hooked up and flushed, I filled a glass to inspect the results. To my surprise, I found small droplets of oil floating on the surface of the water (see picture). After completely filling and emptying the tank several times, the problem seemed to go away. When I filled a new glass the next morning, the oil droplets had returned.I did some troubleshooting and contacted customer support in order to track down the source of the contamination.With the help of Francis over at 123filter.com customer support, we concluded that the source of the contamination was the tank itself. I inquired about getting a replacement tank and stage 5 filter, since the tank (being upstream) appeared to have contaminated the filter. Francis agreed, and had the replacement parts shipped out the same day, free of charge.When I installed the new tank, I opted to connect it directly to my water main instead of through the filter, as I had a suspicion that the new tank might have the same oily substance (possibly leftover from manufacturing). I was correct, and ended up cycling the new tank on it's own, from the water main, full and empty several times until the residue cleared up. When I was satisfied, I reconnected the tank to the rest of the system and flushed once more, this time with RO instead of the water main. With the tank now clean, I installed the replacement stage-5 filter. The now clean and pure water had the hallmark "neutral" flavor that RO water tends to have, and my total dissolved solids (TDS) dropped from 200+ all the way down to 7pmm. Yes, 7 parts per million.The quality of the parts and system, and of course the quality of the water itself, are all top-notch.Also top-notch is support I received, Francis responded promptly, I was never left waiting for answers.The directions have you flush the system a couple of times, I recommend you flush the tank separately, and verify it's clean before connecting to the rest of the system. I suspect this problem is rare, as I had great difficulty finding any reference to this kind of problem with google.======Bottom Line======Reverse osmosis is the ideal way to filter your drinking water. Of the choices available on Amazon at this time (Sept 2020), these guys (iSpring) seem to know how to do it, and how to make happy customers.

Had the unit for about 7 months now, and just completed the first filter change ( 3 of 5 filters ), so I can deliver and informed review by now. I bought the unit for multiple purposes: Drinking water, Aquarium & Plant use, deep cycle battery maintenance, and misc other uses where pure water is beneficial.The water quality in my area is good, but has a high mineral content. My home is a bit older, and the water pressure at the kitchen sink leaves a bit to be desired, so I went with the electric pump assisted unit, I would recommend this unless you have _very_ high water pressure, as it will reduce the amount of waste water and potentially extend the life of the RO membrane.Installation was really pretty simple, and the documentation is clear. Took me a moment to get my head around how the pressurized storage tank works as it has only one line leading into it, which serves as both input and output. The tubing is all color coded and easy to work with; I'm reasonably 'handy', but plumbing is definitely not my forte, but from unboxing until first water was about 2 hours, which included cleaning under the sink and removing an old instant hot water system. ( Which failed to to calcium build up, though if fed from this filter would probably still be working )That did mean that I had a pre-drilled hole in the sink for the faucet, as well as a below sink GFCI outlet. If not, drilling the hole for the faucet could be a bit of a chore, depending on your sink.The unit does require a fair amount of space, so wherever you are installing check the dimensions and be sure you have enough space for the unit and to reach in and work, you'll need access to change the filters periodically as well, which involves using a plastic wrench on the filter holders.I hung it on the side of the cabinet but left lots of play in the hoses so I could lift it off and pull it out into the open to change the filters. I also put a board under the filters to take some strain off the frame.TDS readings with a cheap tester run from 170-200 on my tap water, bounce around from 2-5 after it comes out of this filter, where they were always over 100 out of my refrigerator with its built-in filter.I did connect my refrigerator after the initial install, and you can tell the difference in the water and the ice both.The pump is pretty quiet, the main sound is the waste water in the drain, which is minimal.The filter cans are a standard size and fit, so alternative branded filters can probably be used, but no real reason since the iSpring ones seem to be a good quality at a reasonable price. But if you are worried about iSpring not being around in 5 years and being stuck with an unusual system, don't be, it's all modular and standardized.If I had an negatives, it would be that the frame could use some stiffeners on the corners so it doesn't flex under the weight of the water filled filter canisters. If I have some spare time, I might try to design and print some plastic corner braces for it, but it's not a huge deal. It's also impossible to change the filters w/o water going everywhere. This isn't unique to iSpring or this model, there's just generally no way to drain the water form the filter cans, so some is going to spill out as you detach them. So just fine a pail or tub that can sit under the unit when you change it. Perhaps a drain plug in the bottom of them would let one drain it in a controlled fashion, but that might be overkill!

Great price! Great customer service! Received in perfect condition and installed. Works like a dream. I had a 24 year old softener and replaced it with the iSpring. Love it! Looks good and takes up little room. Nice unit. Highly recommend iSpring products.

Pretty easy installation. Great setup help videos on YouTube. Nice clean water.

Came to the house broken and Amazon wanted use t ship the whole thing back, not really reasonable. Called company sent use new parts works great

Update June 9, 2026The review below reflects our experience from this system that I bought in October, 2025, although I will have to downgrade the system because I have been trying for two months to get new sediment filters for it and they are never available. I have even called ISpring. Their website indicates that the filters are still out of stock. They are not available here on Amazon. The system is only as valuable as the effectiveness of it, and it's not going to work as it should without replacement filters.*********We bought this unit after learning that our well water had bacteria in it. We had been using plastic bottles bought by the case for drinking water, but we wanted to do away with drinking from plastic bottles. After looking online, I discovered this unit that not only filters out many harmful things, but also uses UV to sterilize the water. We have not been sick from drinking the water with this unit and the water tastes great. I would think it could be used for city people who want to remove pharmaceuticals and chlorine from their water. We have placed ours under the sink so as not to take up space on the countertop. With all of the hoses and connections, it does take up a bit of space under the sink. I have basically allowed half of the under the sink space for this unit, with only a few items stored under one side of the sink. We installed our unit's treated water faucet into the sprayer hose hole, which works fine. There was no need to drill any holes to install this unit by doing that. All connections appear to be solid, since the equipment they sent to us works well, so there is no leakage. I feel I am doing myself a favor to my health by having this unit, since I am drinking more water than I did before. We have had this unit since October, and so far we have not had to replace any filters. The manufacturer specifies the number of hours the unit will work before replacement filters need to be ordered, so how long the filters last would depend upon how many people are using the unit's water and how often they use it.

I put this filter to the test after my well water system needed to be repaired and flushed of contaminants and I'd say that if you're a city-dweller who wants RO and are picky about how your water tastes OR you're not on municipal water and want total peace of mind (not just RO, but UV + anti-scale), look no further. This system has it all in an ultra-compact design (no tank, but the pump ensures it's still efficient). I had this installed just weeks before the issue with our well water line being damaged, prompting repairs, a thorough cleaning of the reservoir that added sediment to the line, and, lastly, a round of chlorine/bleach shock. After we were given the all-clear to resume drinking the water, I tried a glass from the iSpring and it tasted fantastic! I did notice that performance slowed down for a few weeks, presumably because we had high levels of sediment in the water line from cleaning the tank and the filter was working, but it bounced back. My only complaint about the system is the faucet. While the top-mount design makes install a breeze, the fact that it isn't clamped from below means the faucet tip (it's basically a curved straw you stick into the metal base) can pop out the same way you pop it in if, say, you bump it while moving a heavy pot full of water out of the sink. Also, while the base and handle are solid, the faucet piece is made of a super thin and light material (I have metal straws that feel much more substantial), so, having it pop out may save it from being broken. But, when you rotate it, it feels awfully cheap. After researching RO systems for a long time before taking the plunge, I still think this offers the best combination of speed, efficiency, and filtering, both for bad stuff and for taste, and having UV filtration is particularly comforting if you are relying on well or rain water systems.

The install takes 7 steps and some are quicker than others. I have a small amount of space under the sink, so I had to actually put the tank in the basement and buy tubing. ACE hardware sells a comparable tubing for $0.23c/ft. I recommend buying 50ft extra to keep around the house just in case something happens.I also ended up buying a T-split so I can also feed my freezer. If you do this, make sure to drain the first tank as instructed before installing a t split unless you get a shutoff valve. You don't want your freezer running ice/water for the first tank.After following the instructions including draining the tank, I tested the water with a TDS meter and still had 70 TDS which is actually very high considering the product advertises that it removes over 90%. My tap is at 270-278 normally, so we were at about 70% removed. I called support and Nick stated that it's likely faulty membrane which he sent out a new one with no questions asked. After replacement, I got down to 7 TDS which is perfect. It's not zero, but the water tastes and looks great. My ice is crystal clear and shiny! (if you like those spherical ice cubes, this water makes the best looking ice)Something to consider when shopping around for an RO system is availability of filters and the overall cost to replace. I'm on well water, so I don't have a water bill. Otherwise, the waste ratio would be considered. I've looked at $1200 systems where the membrane lasts 10 years, $700 systems with 1:1 ratio, but difficult to find filters. This RO system is $250-$300, but you'll need to own some specialty tools/bits if you don't have the hole in the sink already there for the faucet. The filters are also affordable. ~$35 for the membrane only needs to be changed every 1-3 years and the other filters can be bought as a package which is still under $100/year. Culligan, or other big name water companies, are going to charge you an average of $23/month to rent a similar system. If you buy their system outright, you may have difficulty finding the filters and they cost $100-$200/year.A family member went with the tankless which he swears by. I'm sure it's also great and was going to be my first choice. If you're worried about the installation being an issue or don't have a basement to put the tank if your cabinet space is limited, I'd also recommend the tankless. You're going to want options for placement if you go with this system. If you're able to adjust your existing plumbing (Be careful not to adjust too much and monitor for water leaks if you do) ,you might be able to get everything under the sink. I used a folded towel to support the bottom side filters. If there's a leak, I'll know and I'm reducing strain on the caps.TL:DRGreat support - All calls are in the US with an English speaking rep. No talking to a computer ever or calls routed outside of the US.Easy to install - but bulky! Make sure to measure twice, cut once. Be open to having your tank elsewhere such as the basement.Works on well water, but my water is softened. The RO system is removing the sodium from the water and anything else my softener isn't catching.Ice looks freaking fantastic. No joke- my neighbors are literally making fun of me about how much I care about my ice. If you love crystal clear ice, you'd understand how great this is. I'm sure other RO systems achieve this, but the iSpring has the highest quality to affordability to customer service ratio bar-none.

Having just installed this unit myself I can offer a few comments on what’s involved.• If you intend to put this under your sink as suggested AND you have an available hole for the faucet, this would indeed be a fairly simple installation. Of course you will give up a considerable amount of undersink storage. The unit itself is 8 inches wide by 14 inches deep (without allowing for any space for tubing connections). The tank is not small either. In my case a standard 36 inch sink base would end up losing about half its usable storage space, not to mention tubing runs become a tangling hazard for a pulldown spray head counterbalance.• If you choose to install in a basement as I did, understand the installers manual suggests not exceeding 15 foot tubing runs to minimize pressure loss. I located mine within what I swear was five feet of the final tap location laterally, but after allowing for elevation change and a bit of tubing snaking wound up using 13 feet of tube for the final connection!• Realize too you also have 3 runs to make (supply, waste, and tap) so buy plenty of tubing. I bought 50 feet of polyethylene from Menards. The first spool I bought from HD seemed less than 1/4 inch OD, so the compression rings were very loose. I was afraid I wouldn’t get a seal with it. ALSO NOTE – don’t mix poly tubing with brass compression rings; they won’t seal properly, so stay with plastic / delrin rings (brass inserts are fine).• You’ll need an electrical outlet wherever you install it. Some will have a dishwasher/disposal outlet box handy – many will not. Plan on some wiring unless you have a ready outlet.• If you decide not to make all your tubing runs back to the sink base, your connections may not be quite so simple. Is there 1 ½ drain line close by for the waste saddle? Do you have a shutoff valve nearby to hook up to? If not plan on doing some plumbing. I’m very pleased I have the shutoff near the unit and not up a floor, but it was not nearly as simple as using the connector provided.• It may be tempting to look at the unit and think, “Hang from upper tray screw holes.” However the installer manual actually calls for support under the pre-filter housings, not to mention the tray is not as rigid as it may appear. Once water filled everything is a bit heavier too; the tank especially probably weighs 25 – 30 pounds filled. I chose a stout shelf, close to the ceiling. I’m still a bit uneasy about how top-heavy the tank seems since the air chamber is on the bottom. I plan to install a wire preventer into the recessed channel around its circumference.• Finally, the manual suggests to have a towel available to catch spills, which is an understatement. I had one prefilter o-ring unseated so ran a fair bit of water out before catching that. Decided to finish pressure testing on the basement floor, which worked fine until I had to disconnect the inlet line and depressured the unit into my boiler room! Really glad I wasn’t in the kitchen at that point. You will likely spill/spray some water, wherever you hook it up, so be prepared.• The instructions seems pretty complete and accurate, if a bit verbose. I do have one nit to pick, as regards the faucet install. I needed to use some plumbers putty under the main cover plate and some clear silicone between the plate and the faucet body to eliminate the tendency for these to rotate during use. No amount of tightening under the counter seemed to be enough. Wouldn’t hurt to mention that hint in the manual.This all being said, I’m very happy with the unit and installation. The pump isn’t exactly silent, making sort of a pulsing sound, so not having it all in my kitchen is nice. The water tastes great, not that my tap water was bad, but it is actually better. I haven’t tested inlet/outlet TDS yet which was the main reason for getting it, but trust at this point that lead and other heavy metals and bad actors are substantially reduced.Update: tap water is coming in at 150 ppm TDS and filtrate is 6ppm.