Search  for anything...
Waterdrop

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

  • Based on 3,260 reviews
Condition: New
Checking for product changes
$429.00 Why this price?
Save $110.00 was $539.00

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Wednesday, Jul 2
Order within 16 hours and 23 minutes
Available payment plans shown during checkout

Recently Viewed

Size: 400 GPD


Features

  • Trusted certifications: Waterdrop G3P600 reverse osmosis system is certified against NSF/ANSI 58 for TDS reduction and NSF/ANSI 372 certified for lead-free material. Also it has been tested and certified against NSF 42 to reduce chlorine, bad taste and odor. The tankless reverse osmosis system is also certified by the Federal Communications Commission. Besides, it meets the EU Standards and UKCA Standards for safety.
  • 8-stage filtration: Tested by official third-party laboratory (SGS), the reverse osmosis system can effectively reduce TDS, chromium, PFAS, radium, fluoride, arsenic salt, iron, calcium, particles, chloride, chlorine and radioactive substances in your tap water. And our RO water filter system can reduce chemicals such as vinyl chloride, ethylhexyl acrylate, isobutylene, ethylene glycol, according to the reverse osmosis membrane technical manual.
  • Smart display faucet: The tankless reverse osmosis system is built with a smart display faucet. For instance, the TDS monitor tells you the quality of your filtered water, while the filter life tracker shows how soon you need to replace your filter.
  • High capacity, 2:1 low drain ratio: As an upgraded reverse osmosis system, this reverse osmosis water system produces 600 gallons of filtered water per day. By its low drain ratio, this system can produce only one cup of waste water for every two cups of pure water produced. Furthermore, with a fast and stable water flow rate, this RO system fills a 8 oz cup of water in 8 seconds, which is ideal for drinking and washing vegetables.
  • Tankless design: Waterdrop G3P600 reverse osmosis system has a stylish look. This tankless design saves 70% under sink space. You can change a filter in 3 seconds without moving the system or using any tools. Note: This reverse osmosis system requires under-sink electricity.
  • Please measure your cabinet dimensions to ensure that the cabinet size is larger than the product size. The product size is 18.12"L x 5.67"W x 17.72"H.

Brand: Waterdrop


Special Feature: 8-stage Filtration, 600GPD high capacity, 21 low drain ratio, Smart display faucet


Product Dimensions: 18.12"L x 5.67"W x 17.72"H


Package Information: Cartridge


Installation Type: Under Sink


Power Source: Corded Electric


Item Weight: 32 Pounds


Model Name: WD-G3P600


Lower Temperature Rating: 41 Degrees Fahrenheit


Maximum Flow Rate: 0.42 Gallons Per Minute


Brand: ‎Waterdrop


Special Feature: ‎8-stage Filtration, 600GPD high capacity, 21 low drain ratio, Smart display faucet


Product Dimensions: ‎18.12"L x 5.67"W x 17.72"H


Package Information: ‎Cartridge


Installation Type: ‎Under Sink


Power Source: ‎Corded Electric


Item Weight: ‎32 Pounds


Model Name: ‎WD-G3P600


Lower Temperature Rating: ‎41 Degrees Fahrenheit


Maximum Flow Rate: ‎0.42 Gallons Per Minute


Operating Pressure Range: ‎87 PSI


Upper Temperature Rating: ‎100 Degrees Fahrenheit


Shelf Life: ‎24 Months


Supported Water TDS Level Maximum (PPM): ‎1500


UPC: ‎840814158555 840814161715 840814187616


Global Trade Identification Number: ‎15, 55


Manufacturer: ‎Waterdrop


Part Number: ‎WD-G3P600


Item Weight: ‎32 pounds


Item model number: ‎WD-G3


Size: ‎600 GPD


Color: ‎White


Style: ‎White


Voltage: ‎110 Volts


Item Package Quantity: ‎1


Certification: ‎Iapmo Nsf/Ansi Standard 58 & 372 Certified


Special Features: ‎8-stage Filtration, 600GPD high capacity, 21 low drain ratio, Smart display faucet


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Please note Most RO systems do NOT recommend using well water as a source. Large particles in well water will clog the filters easily and shorten filter life.


Date First Available: February 20, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • G3P600 – A Huge Upgrade from My Old RO System (1-Month Honest Review)
Review Image by Ko Ko
Review Image by Ko Ko
Review Image by Ko Ko
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. ... show more
Reviewed in the United States on June 5, 2025 by Ko Ko
    • Go for it .
We are very happy with the Waterdrop system. We wanted a model without a tank, and the flow rate is excellent. We no longer have to wait a long time to fill our water containers, and the digital indicators make it look modern and up-to-date. The water tastes great, and we no longer have the headache of changing filters frequently. So far, I haven't experienced any leaking problems with my system, which I've seen mentioned in some reviews. My plumber installed it for me, and he even asked where I purchased it. The main reason I chose Waterdrop was because of a comprehensive water test I saw in a YouTube review, which showed great results. I wrote to the reviewer because I couldn't buy the system directly from her site, despite her having an Amazon link to other water systems but not for Waterdrop. Hopefully, she will add it in the future since returning items on Amazon is easy. Hope this review helps, I wanted a good water filter system in the middle price range. ... show more
Reviewed in the United States on June 14, 2025 by Cecy
    • Amazing results
Review Image by Pawel Pawel
Review Image by Pawel Pawel
Performed the "TapScore Well Essential" water test BEFORE installing the filter AND 1 year after installing the filter. Also purchased the ultraviolet light add-on attachment. The difference between the two water tests are remarkable. The TapScore water test of my well water was rather poor with traces of lead and lithium and some more. The TapScore water test after 1 year of using the filter removed all the bad stuff. In fact, TapScore has an option to compare the test results to bottled water. When comparing the results, now my well water through this filter has better properties for most items listed when compare to bottled water. PLEASE be aware that this Waterdrop product is not recommended to be used with well water unless a water softener or other general filtration is in place. I do have a water softener system in place for the whole house and Waterdrop seems to work great even after a year of use. ... show more
Reviewed in the United States on June 20, 2025 by Pawel Pawel

Can't find a product?

Find it on Amazon first, then paste the link below.