Waterdrop G3P600 Reverse Osmosis System, 8 Stage Tankless Reverse Osmosis Water Filter, NSF/ANSI 42 & 58 & 372 Certified, Under Sink RO System, 2:1 Pure to Drain, Smart LED Faucet

what our customer say this product:

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1. Anonymous Verified Buyer – 18 July 2024

   I honestly do not have any complaints about the Waterdrop G3P600. My husband installed this system 2 weeks ago. The flow of the water out of the facet is amazing, faster than my fridge water flow. I was worried about the noice level as I hate to hear white noise in the background. This system is very quiet. The only issue is the water that comes out from the facet is room temperate, but this is not the fault of the system. I live in a warm climate and this is the temp of the water. I am very happy with the Waterdrop G3P600.

   

2. roco Verified Buyer – 16 August 2024

   First of all: installation and maintenance is very easy. Here in Surrey this filter gives me 15 TDS which is not perfect for aquarium. But the worst thing is that the TDS meter is a joke. I have my own TDS meter and it is in line with this build in for the most of the time, besides when filter needs to be replaced. Inbuilt TDs meter was showing 16 ppm, mine 300 – tap water is here arround 350! After exchanging the CF filter, AND flushing it was lower and lower TDS measured by my TDs meter, but the inbuilt was showing 15 all the time !!!! Moreover, I assume these filter change alarms are automatic – like programmed for a period of time .. 🙁 I will buy a PROPER RO filter after moving to another house. This one is OK for drinking. Build quality 5/5, ease of use 5/5. Filtering 2/5. Overall 3/5. Not recommended for aquarium use.
   

3. PERRIN Verified Buyer – 24 September 2024

   bonjour très facile d’installation et tien peu de place
   le fonctionnement est bien bonne pression
   je le recommande
   salutations
   

4. Luis Mora Verified Buyer – 30 December 2024

   NO LO RECOMIENDO PARA MEXICO.
   Todo va bien hasta que tienes que reemplazar alguno de los filtros. No están disponibles en waterdropoutlet.com México, el fabricante no los manda al extranjero por lo que te tienes que arriesgar con terceros en Mercado Libre.
   

5. R. Carlson Verified Buyer – 8 March 2025

   We live by the sea in an old community in an area with very high particulates in the water system. The water also smells like chlorine. We have always bought bottled water, but with the Pandemic, our grocery load started to become unmanageable as we cut down on the number of trips we made to the store. We started to drink the tap water and almost immediately decided it was time to try out a water filter. RESEARCH I did a lot of investigation, and by a long shot, the WaterDrop products represent the best designs on the market: – the forward-facing filters are as easy to replace as a refrigerator filter. – the tankless design means you don’t lose much undersink space (Image1) – the tankless design also means there’s no opportunity for bacteria to grow in the holding tank – the smart faucet (the led ring around the base) conveys the state of the filters – blue is good, yellow means you’re due for a change and red means you should change a filter immediately – the WD-G3 display not only tells you the state of the water in Total Dissolved Solids (TDS), but also shows you the state of each of the filters (blue/yellow/red) so you know which one to order. – the brushed nickel finish matches our faucet and looks great (Image 1) – the 12 second time-to-fill an 8 oz glass is good Everything about this unit screams “quality”. The instructions are simple and easy to follow. The 800 number is listed on the cover of the installation guide. Each part feels solid and well-made. INSTALLATION There is one challenge that most homeowners will probably face to using this unit — it requires power under the sink. I had a socket under my sink that the garbage disposal was plugged into. I assumed (you can see where this is going!) that as is traditional, the upper socket was wired to the disposal switch and the lower was always hot. Unfortunately, living in an older home, this was not the case, so I had to replace the socket with a split/switched/always hot one. Our garbage disposal unit is huge, and our sink is in the corner of the kitches with one small door, so it needed to be removed to facilitate the install. Between the disposal deinstall/reinstall and and the rewiring job, installation took me all day. HOWEVER – The actual installation of the Waterdrop unit was approximately 40 minutes of this, so plan accordingly. I had one minor issue with the waste pipe connection, which is designed for 1.5″ pipe (we have 2″ pipes, but the pipe coming out of the garbage disposal was 1.5″ with just enough space to connect the waste line). All of the lines are thoughtfully unique – there are two white lines, but of different sizes (one goes from the water source, one goes to the spigot) and the waste water is red, so you can’t get confused. The connections are all pretty easy, although you should pay attention to the “Push the locking ring” instructions so you don’t accidentally break one of the shipping plugs when removing them. The locking ring collars are a bit fussy and require a needle nose pliers to install. Other than my own personal challenges of a small under-sink space and the electrical issue, the installation was a breeze. WATER QUALITY So, the big question — does it work? The answer is YES! See the second the image. I used an independent water meter to measure the TDS. On a sample from a bathroom spigot I got 99. This is pretty typical, we run around 90 to 120. Measuring the water from the filtering system shows 12. The reading on the front of the unit showed in the mid 70’s during startup, but now shows 5. Given the somewhat wonky nature of water testing, I’m good with these numbers even though they differ slightly. The WD-G3 reduced the TDS in our water by an order of magnitude. This is exactly what you would expect from an RO system that should filter out about 90% of all TDS. This translates to a better tasting, safer glass of water, which it produces in about 12 seconds (8 oz). Not only does the water taste better, our coffee and anything else we used water in also tastes better. While the difference is not as evident at room temperature, you can really tell the difference in a side-to-side test of chilled water. We tested tap vs filtered vs Poland Spring bottled. At room temperature, they are all pretty much the same, with Poland Spring being slightly saltier. We tested the TDS on Poland Spring and it was at 41, confirming that there’s some mineralization going on there. In chilled form, the filtered tasted the best, with Poland spring second and the unfiltered third. (And yes, to answer your question, my wife is now laughing at me because of my obsession with metrics and blind taste tests) FILTER REPLACEMENT/CUSTOMER SERVICE As some other reviewers have notes, the “CF” filter seems to be in very short supply and cannot even be purchased on the Waterdrop site. I contacted Waterdrop customer service who responded (on a weekend!) that the filters will be back in stock at the end of this month. SUMMARY Pros: – Does what it says, reduces TDS by a factor of 9-10 – Produces clear, clean water – Interface is intelligent and intuitive – Tankless design saves space and eliminates post-filter bacteria issues – Looks great – Responsive customer service Cons: – Requires un-switched power under the sink – The CF Filter replacement is currently unavailable. Recommendation: The CF shortage is worrying, hopefully Waterdrop will be able to solve this issue. It’s a Pandemic so I’m willing to give them some leeway in supply chain challenges. I decided to take the plunge anyway and given the alternatives, this is still the best unit on the market.

   

6. Monica Ou Verified Buyer – 4 April 2025

   After researching the best under-sink water filtration systems, I decided to go with the WaterDrop 8-stage tankless Reverse Osmosis system. I also purchased the optional mineral filter to enhance the water’s taste. During installation, I realized the 1/4” tubing needed to connect the mineral filter was missing. This could have caused a delay, but thankfully, I was assisted by Olivia from Customer Support. She promptly followed up on my order and coordinated with the warehouse to expedite the shipment. Now that everything is installed, the system works flawlessly. I even added a small hot water tank, so I get both room temperature and hot filtered water instantly. I’m very satisfied with the product and the customer service I received. Big thanks to Olivia!

   

7. Mauro Verified Buyer – 12 April 2025

   Ottima qualità costruttiva del prodotto, si installa in autonomia in circa un’ oretta.
   Dopo 3 settimane di utilizzo non ho riscontrato alcun problema
   Finalmente addio alle bottiglie di plastica!
   

8. Javier Garcia Verified Buyer – 9 June 2025

   Gran producto
   

9. Ko Verified Buyer – 12 June 2025

   I used to have one of those older Pure Blue 4-stage RO systems with a tank. It was painfully slow, wasted a lot of water, and eventually the tank broke. I could barely get 100ml of water at a time, and honestly, it made me stop drinking water altogether. The scariest part? One day I found a weird, white, elastic string floating in my water. It looked like silk or rubber. After some digging, I learned it was probably part of the aging air bladder inside the tank that had degraded and ended up in my cup. That was the final straw — I knew I had to switch. ⸻ I upgraded to the Waterdrop G3P600, and the difference is night and day — it honestly feels like going from a flip phone to a smartphone. • The water flow is fast and consistent. I make coffee, tea, fill two big bottles every morning, and refill my cat’s water bowl — no issues. • The TDS display gives me peace of mind knowing exactly what I’m drinking. • No tank = way more space under the sink, and no worries about contamination. • It does make a light sound when filling water, but it’s nothing compared to my old machine’s non-stop “gurgling” that lasted 30-40 minutes. ⸻ I hired a professional installer — the whole thing took about 50 minutes and went smoothly. I’m using this unit in my personal suite, and for a single person, it’s perfect. I’ve also been drinking 2–3 liters of water every day now, and the water tastes super clean with no strange smell. Maybe it’s just me, but I’ve even dropped a little weight since I started using it — hydration really does help! ⸻ Before buying, I compared this with the X8 and a few other models. G3P600 hit the sweet spot for me: reasonable price, low maintenance, excellent features, and solid performance. I’ve been using it for a month now and feel completely satisfied with my choice. If I ever upgrade the kitchen unit, I might go for the X8 since it’s newer and faster. But for now, this G3P600 fits my needs perfectly. Bottom line: If you care about clean water but don’t want a high-maintenance system, the G3P600 is an excellent choice. Great value for the money — I highly recommend it.