Waterdrop G5P700A Alkaline Mineral Reverse Osmosis Water Filter, 700 GPD

After reading a plethora of reviews, I was fairly optimistic. I had moved from years of home-delivered bottled water, to filtering at-home using a large countertop Britta - which was better than the Waterdrop version I had previously used. But I was still displeased because it was plastic. My well water has an unpleasant metallic taste. The water this produces is the best tasting, odorless water I have ever had. Because I didn't have easy access to a power outlet, I had my home contractor install it - for a pittance. He had to cut a small hole in my countertop (which he filled with clear epoxy) to route the cable through the cupboard. Once this was completed, it took just minutes for him to install it. He was able shut-off the water under the sink, not the whole house. The cold water adapter fit perfectly, with no leaks. My contractor said he'd added one to his Amazon wishlist! The unit is amazing! Quiet, great water pressure, and a fast flow. I have instant fresh, great tasting, odorless water. I could not be more pleased! I should have done this years ago. I live alone with 3 cats, and we go through about 5 gallons a week, spending well over $600 a year and having to store four 5-gallon bottles that required a lot of real estate in my small home. Having replaced most plastic storage in my home, this is the pièce de résistance! I highly recommend this to anyone who has water issues or plastic concerns. Well worth the very reasonable price.

Really happy with the Waterdrop G5P500A so far. It fit perfectly with my setup and was pretty easy to install. The water flow is surprisingly good for an RO system, and the unit feels solid and well-built. Water tastes great, and everything has been working smoothly. Definitely happy with the purchase!

6-month Update: The RO continues to perform excellently, with no leakage or unexpected issues since installation. We are preparing for our first CF filter replacement; the advisory beeps are audible but not excessively loud (RO unit is installed in a closed-door under-sink cabinet). We also added our refrigerator ice maker to our Waterdrop system, and it seems to be performing well. I believe this RO is a far better system than our old one, and recommend it. ~~~~~~~~~~~~~~~~~~~~ Original Review: We purchased and installed this RO filter almost a month ago. Here are our impressions: - The taste of the water produced is excellent, much better than the old system this one replaced. - We experienced no leakage after installation, again an improvement. - It has a much smaller under-sink footprint than our old one. - Filters are easy to remove/replace. - Installation was easy, especially with multiple videos, instructions, and diagrams. - The unit feels very well put together, and all the parts were there. - It makes some normal noise during operation, but not so loud that it is distracting or annoying; our refrigerator ice maker is about the same level. I don't see it as a detractor. - Customer Service: This is where Waterdrop really shined in my family's eyes. Our Customer Service Rep, Krystal X, responded within hours of our initial request for help, and on a weekend to boot. She took the time to gather pertinent trouble information, get it to her engineers, and had a response and had parts on the way almost immediately. It is clear she and Waterdrop care about the quality of their product and taking care of their customers, and stand by their product to fix any concerns immediately. Krystal took personal ownership of our ticket, and saw it through the process to final resolution. I feel like this is a level of customer service that so many businesses simply don't deliver these days; in my opinion she would be an excellent trainer of other reps, or a great supervisor/manager. Please pass on our thanks to her, Waterdrop! As mentioned above we had a small issue, but since it was resolved and didn't involve something we saw in other reviews, I think it may be a one-off circumstance that was satisfactorily fixed by Waterdrop. I do know we are happy with our improved water quality. Thank you!

I purchased the G5P500A unit back in January 2026 and installation was straightforward. The hardest part was needing to drill a new hole into my quartzite countertop, which was fairly easy. I also needed to drill a hole into the drainage pipe for the waste water (red tube). Aside from that, all the needed accessories are included with the product. After completely installing the unit, I never had any leaks. The water tastes great and clean. I tested the water with a TDS meter with my tap water reading 450ppm and 50-80ppm with the filtered water. I also tested the pH which was in 8-9 range. Fast forward to July and I purchased a CF filter here on Amazon, from Waterdrop. The CF filter needs to be replaced every 6 months and the RO filter every 24 months. After I replaced the CF filter, that was when the problems started. Immediately after installing the new CF filter, there was a huge drop in the water pressure and at times almost completely stops. I reinstalled the filter multiple times and attempted to troubleshoot by resetting the unit, checking all lines with no luck. I figured it must have been a bad filter. I then requested for a replacement filter from Amazon and was sent a new one. This new one had a slightly better result but still had a significant drop in water pressure. I then reached out to Waterdrop customer service. After some troubleshooting and explaining the situation, they sent me another CF filter which was ALOT better than the ones purchased on Amazon, but still with a noticeable drop in water pressure. Compared to videos I had when I initially installed the unit, the water pressure was only around 80%. I notified Waterdrop of this concern, and they sent me a new overall unit to replace my old one. I now have a brand new unit installed and the water pressure is back to normal. I performed the same tests and the TDS and pH are all as expected. Despite the issues I had when replacing the CF filter, Customer Service came through with flying colors. Doreen was the rep that assisted me throughout the whole process and was nothing short of excellent. The assistance provided was smooth and reassuring that they have great customer service reps. I love this RO unit. I got mine when it was on sale and has been amazing. Next time I might not purchase the filters from Amazon and will just go through the Waterdrop website instead since their pricing, the last time I checked, were pretty much the same. I don't know if I was just pretty unlucky and received 2 faulty filters. Despite the issues I went through, I would still highly recommend this product.

It's easy-ish to install, instructions are excellent and it's size is good. It took me 2 hours and even managed to do it without a drill, but do recommend one - can save you 15 mins. Make sure to not plug it in your sink's garbage destroyer power outlet. Water flows pretty fast compared to a non-pump system. Water fauced is cool and TDS shown is a plus, it's not loud either, the change of filters will be pretty easy when the time comes.

I love this water filter system! Living right by Lake Erie, we get really hard water. And this makes it taste great! Set-up was reasonably easy for one person and after that, changing the filters and using it every day was a breeze! Unfortunately, we recently had an issue where the water flow became poor due to a malfunction in the system. But even though we were just a month outside of our one-year warranty, I contacted the company's customer service and ended up receiving an entirely new system for free!!! Customer support was simple, I received detailed troubleshooting information. However, when the problem persisted, so did their wonderful customer support! Doreen, especially, was so kind and helpful. She not only made sure that we would receive the new system, but even followed up to be sure all of our concerns were entirely resolved. Doreen quickly helped us resolve our issue while making it clear how much this company cares about the satisfaction of their customers. I highly recommend this filter and this company for your water filtration needs. <3

This is a great RO system and is priced very well compared to similar filtration systems. This Waterdrop G5P700A unit was replacing an older tank RO system that we’ve owned for over 7 years and which had 4 filters. One of the reasons I selected this Waterdrop product was it only entails 2 filter replacements, but still having 8 stages of filtration. (One filter change every 6 months, and the other primary RO filter has a lifetime of 24mo). The faucet installation was the most demanding task, as needed to enlarge the hole in the granite countertop to aid in getting the faucet through. All other steps for installation were spelled out in the instruction sheet and easy to follow. I really like the black matte look on the RO unit even though it’s under my sink and not visible to everyone. The faucet which has a brushed nickel finish is an ideal match to my main kitchen faucet and the RO faucet has a very modernistic and stylish look. The electric pump that runs when the faucet handle is opened is relatively quiet. After using this system a few days you don’t even notice or are aware of the sound when the pump runs. Water stream is constant and okay, but slightly less flow than my old tank RO system. Perhaps takes another second or so to fill 8oz cup, in comparison. I’ve only had this RO unit installed and functioning for 3 months now, but everything appears to be operating great and the water taste is perfect. No issues so far with leaks or faucet dripping as other buyer reviews have mentioned. We currently are impressed with the product and hoping it will continue to operate flawlessly and provide excellent tasting water for many years to follow. ** Updated review ** After using this RO system for almost five months now, I'm updating my initial review. On the positive side, my independent testing with a separate third-party TDS meter confirms that the unit is providing good quality filtered water. However, a significant concern has arisen regarding the accuracy of the smart faucet's TDS display. The smart faucet consistently only displays a reading between 15 and 18, a number that does not match the actual readings I have verified using a stand-alone TDS meter. As an example: When water remains idle in the alkaline filter for an extended period (e.g overnight), the TDS will be initially higher upon dispensing. This effect holds true as my test sample with a TDS pen has been as high as 225 after inactivity. However, the TDS value in the faucet display never changes or fluctuates when turning on the faucet. In my case, the faucet display should be detecting and showing that higher mineral content, before dropping back down to a more normal range after about 15-20 seconds of purging. When I reached out to Waterdrop’s customer support about this issue, they maintained that the device was functioning "normally" and offered no solution or replacement. I believe this meaningless value on the faucet display indicates a defective sensor or faucet, and their lack of support has left me with a complete loss of confidence in the product's smart features. A properly functioning display should alert the user to any increased dissolved solids (TDS) to insure you are receiving the best quality water.

Our very expensive municipal tap water in this town is quite disgusting and has failed multiple quality checks for dissolved chemicals over the years. We aren't at "boil water" advisement quite yet but it has a swampy odor and leaves a nasty pinkish orange residue in sinks. I was filtering my water and the drinking water for my pets but it was obvious that the filters for the fridge and pitcher were clogging prematurely or losing their effectiveness before the reminder came on. Also, most filters don't remove things like dissolved metabolized pharmaceuticals and fluoride, which I do NOT want in my drinking water. After spending a fortune on bottled water, I finally had enough and decided to get a reverse osmosis system. It's only been installed for about a week and I couldn't be happier with the quality of the water. I did have a plumber install it for me since it required some new supply lines and other modifications to be added, but there have been no leaks and i love its compact design and that it doesn't have a big tank to take up space in my cabinet. The cartridges last a good long time but with how bad our water is, the CF filter may end up lasting less than the expected 6 months. The membrane cartridge is supposed to last 24 months but we will see. It's super easy to use, just turn the handle on the included faucet, the unit makes a very gentle hum and clean, fresh water comes out. If you're on the fence about one of these systems, you can't go wrong with this model. It will do you and your family's health a big favor. Note: if you plan to provide RO water for your pets, especially cats, do not get a model with the alkaline ph filter.

The continuous flow is great. Knowing it has a high clean to waste ratio I feel good about it saving me money. I removed an older (bulky) unit then installed this unit. It took me about 10 minutes to install it. No issues at all. Saved a lot of space too.

Excelente peoducto

I haven't installed this unit yet, the 5 stars is for customer support. I wanted to share the information I received for fellow cat people because it could save your cat's life! Unlike humans, cats require a slightly neutral/acidic Ph (6-6.5). If their Ph balance becomes too acidic or too alkaline, they could develop urinary stones and need to be put on a prescription diet and/or have surgery (in the best case scenarios). I called customer support to inquire if I could simply remove the alkaline portion of this filter for when I'm filling my cats' water dish. She explained that the unit wouldn't work with one of the filters removed, but gave me a brilliant workaround. Here's the plan: I will purchase a replacement filter that's NOT alkaline (similar model number but without the A; the non-alkaline filter for this unit is G5P500-CF), then switch out that filter when I'm filling my cats' dishes. When I'm done using it, she advised me to store it in there refrigerator to prolong the shelf-life. She said that I will need to retire that filter after 3 months, whether it's all used up or not. While I wish it would keep longer when not in use, I am thrilled that the company offered this workaround solution. I can't imagine too many other companies would be willing to be creative and flexible like that. Their kindness and willingness to help me find a solution was impressive. Waterdrop, if you're listening, thank you for helping meow-t :)

Great taste and quiet. Hope it lasts a long time.

Takes 5s for the pump to pump water to faucet. Unlike advertised.