Search  for anything...
PureDrop

PureDrop PDR-100RO 3-Stage Under Sink Reverse Osmosis Drinking Water Filtration System, 100 GPD Fast Flow Built-in Tank RO Water Filter System, Reduce PFAS

Based on 13 reviews
Condition: New
Checking for the best price...
$209.99

Buy Now, Pay Later

As low as $35.00 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – 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, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. 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

FREE 30-day refund/replacement

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 4 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, Nov 3
Order within 23 hours and 7 minutes

Available payment plans shown during checkout

Protect Your Purchase

Easy claims online, fast replacements, no fees

Checking for protection plans...

Recently Viewed

At a glance

Condition
New
Style
100 GPD RO Water Filter
Model
PDR-100RO
Capacity
100 gal
Dimensions
5.91"L x 17.72"W x 18.5"H
Weight
18 lb
Material
Aluminum, Plastic
In the box
PDR-100RO SystemDrinking Water FaucetAll Filters

Features 5

  • Superior Filtration: The PDR-100RO ensures superior filtration efficiency through its meticulously designed three-stage system. With a composite prefilter, a high-capacity 100GPD RO membrane, and a dedicated post-carbon filter, enjoy unparalleled water quality that's free from contaminants, providing a refreshing and clean taste every time.
  • Revolutionary Reverse Osmosis System: Eliminates up to 99% of over 1,000 contaminants, including PFAS, lead (up to 98% removal), chlorine, fluoride, arsenic, and more. Crafted with precision using high quality filters and an advanced RO membrane for faster, safer, and healthier water, ensuring a transformative drinking experience.
  • Easy DIY Installation: With industry-leading guidance, the PDR-100RO ensures an effortless, do-it-yourself installation process. Enjoy clear instructions and videos, fitting perfectly under a standard kitchen sink.
  • Streamlined Efficiency with Tankless Design: Engineered with cutting-edge tankless system boasting a 3-stage RO setup, complete with filter life indicators. Experience optimized performance and extended durability while enjoying the space-saving, hassle-free benefits of a tankless design.

Description

At PureDrop, we provide high-quality and affordable water filtration solutions that are easy to use, ensuring that clean drinking water is accessible to everyone. PureDrop use innovative filtration technology to provide refreshing drinking water that is free from harmful substances, promoting the well-being of your family. PureDrop provides a variety of water filtration systems and filters that are not only easy to install and maintain but also deliver clean drinking water. The PureDrop PDR-100RO reverse osmosis water filter system provides a fast water flow rate of 100 GPD and takes 8 seconds to fill up a 8 oz cup, ensuring that you can enjoy pure water immediately. With its automatic flushing feature, this RO system maintains clean drinking water, offering you a refreshing experience with every drop. PDR-100RO PDR-100PCB PDR-100MRO PDR-100TF

Specs 24

Brand PureDrop
Special Feature Built-in Tank, Reduce TDS
Product Dimensions 5.91"L x 17.72"W x 18.5"H
Material Aluminum, Plastic
Capacity 100 gallons
Package Information Dispenser
Installation Type Under Sink
Purification Method Reverse Osmosis

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 3

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
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

PUREDROP - BEST ALL AROUND, GREAT PRICE, GREAT SUPPORT & A HIGH QUALITY RO SYSTEM
Style: 5 stage RO water system
Wow Unbelievable. after 4 years - update. 2024. I called and talked with Nick again who provided the VERY BEST customer service I have ever gotten in my entire life. He answered the phone and within minutes my small install problem was solved and he is sending the part I needed at no charge. If you are looking for the best RO system, at the best price, you do not need to look any further. I did extensive research and found the Puredrop RO system to be the best overall. It has the best price, wonderful support, and is a very well-made quality system. ISPRING VS PUREDROP Puredrop is the same company that makes ISpring, which is also a very nice RO system. I was not sure if I should buy the Puredrop RO system compared the ISpring RO system, so I called support and asked the difference. I spoke with both Nick and Don who provided all the answers to my questions so that I could make an educated decision. ISpring RO t is more money, but you get more for your money: Larger Tank, a Clear 1st Stage tank, and a better faucet. In my case, it is just me and my wife, and I do not need a larger tank and I have a faucet from owning other RO systems and I would only be giving up the clear tank with the Puredrop System. CLEAR 1st STAGE TANK If you change your filters on time, there really is no reason to see inside the first stage. If you are forgetful, it may be a good idea to get the Ispring system with the clear first stage tank. FILTERS AND MEMBRANE I had other RO systems in the past, and the biggest issue I have found was the cost to replace the filters-especially the membrane, which can be as high as $40 for some name brands—especially if you have to have the check value built into the membrane. The Puredrop RO has the check valve as a separate component in the system, which eliminates having to buy a membrane one with a built-in check valve. PLUS, I love it that PureDrop provides an extra set of filters for the next time the filters need to be changed. After researching the filters, I found that I can buy generic filters for a lot less and if I wanted the Puredrop brand, it was not that much more. INSTALLATION AND SMALLER TANK The Puredrop RO system, which was easy to install with color coded water lines. So far everything is working fine and I really like the small compact tank, which gives me a lot more room for storage under the sink. There is no reason that I can see to have the larger tank for a family of two. CONCLUSION The Puredrop has been installed for a week when I wrote this review. I suspect that will not have any issues, but even if I do, I know that I can always call support: Nick or Don, and they will for sure take care of any issues I have for years to come. ... show more
Reviewed in the United States on November 27, 2020 by Norwood451
Best water I’ve tasted and will pay for itself in a few short months
Style: RO water system w/ UV
Easy to install not a problem with leakage at all , I personally drained my storage tanks twice then connected my uv up and drained a third time water tastes great like rain water only way I can explain it , the design makes it pretty self explanatory and is a good quality product I’d recommend it especially if your on well water and share a well that doesn’t get much attention . Thank You ! ... show more
Reviewed in the United States on May 13, 2026 by Kenneth Woodward
Very satisfied
Style: 5 stage RO water system
We bought this during the latest prime day sale and we are happy with it. The installation went fine, though I did end up watching a couple videos along with using the manual to be sure I had things right. There were no leaks on startup despite there being at least 20 connections that could have a water leak. Most of those already come connected by the factory and you don't have to do them but they are still a possible leak source. I read a comment by a plumber that recommended putting something under the tank as the materials making up its valve are more likely to leak than others. This particular tank is smaller than most under sink systems so is better if it's tight under there. If you have a larger household you may want a bigger tank but I honestly think it's sufficient for most families and it is always refilling when water is depleted. My countertop had a hole already that was occupied by a soap dispenser, so I repurposed it for the included filtered water faucet and we fill a nice-looking dish soap dispenser that sits next to the sink now instead. Drilling the hole in the PVC pipe was much easier than I feared. Make sure it is done above the trap and the hole is the correct diameter. I purchased a digital total dissolved solids (TDS) device and the filtered water has been measuring 2 and 3 TDS, which is very good. The water tastes good to me despite there being no minerals and feels smooth in the mouth. It's nice knowing the water is pretty much as clean and pure as it possibly can be for us and our pets. The extra 3 filters included pushes out the filter buying time to 1 year. Reccomended. ... show more
Reviewed in the United States on October 18, 2023 by S. R. Maly
My third one
Style: 5 stage RO water system
I bought a second one of these units a few months ago. I needed another one for our other house, and I bought it for a reduced price, about $141. These things are coming down in price, and it is amazing. My second one, about 3 months ago, was before or about the time of the inflation. So, I don't know why the price was lower than my first purchase for about $175. Then, I went online a few weeks ago to buy my third one, and it was even cheaper! These reverse osmosis water cleaners are the best. We installed one at our farm underneath the cabinet sink with the included faucet. You have to drill a hole at the top of your sink to install the faucet that is included. It is an easy job. We also drilled the same hole at our other house, and it works fine. Easy peasy. The water is way clean with the reverse osmosis process. We also use an ozone machine to further purify our water, and I recommend it. We got our last ozone purifier for about $15 online. After sending the water through the RO purifier, the ozone purifier improves the process much more. This RO machine also comes with extra filters which comes in handy when replenishing after a year or so. This is a great filter. It is my third one, and probably not my last one. ... show more
Reviewed in the United States on May 19, 2024 by Louis J Soule
Super simple
Style: 5 stage RO water system
Super easy to install. I'm very satisfied with mine.
Reviewed in the United States on May 29, 2026 by jamey j petruzzelli
Worth your money.
Style: 5 stage RO water system
Great 5 stage RO, I would definitely recommend , I don’t have to buy water from the stores anymore.
Reviewed in the United States on May 2, 2026 by Jerry
Best value and really works. Best value and really works.
Style: 5 stage RO water system
Review Image by Starla Stone
Review Image by Starla Stone
Review Image by Starla Stone
Our "new" house had awful tasting water. The water was cloudy straight from the tap. Cold or hot, it was murky and I did not like the taste of it. When I found the reverse osmosis system with five filters from Puredrop I was very excited. It took a full day for my husband to install it. It kept leaking, and they warn you that it may leak. So he just kept tightening the canisters whenever they leaked. The leaks were not the systems fault, he had not tightened them very tight from the beginning because it is plastic and he did not want to over tighten them. My first cup of water was divine. Everything I had hoped water would taste like again. It seems like a small thing, water out of your tap, until it is foul and you will not drink it. No more bottled water and I can drink as much as I want again. I am very happy with this system. Everything tastes better. Coffee, tea, and I even noticed my pooch drinking more water. I am very pleased with the system. I included a photo of the system with the color coded tubes attached already. It made it very easy to install because everything is color coded. Even the clips that go over the connectors are color coded. The system included specialty wrenches for the canisters, the wrenches in my picture are my husbands who decided to go ahead and upgrade a couple of our pipes while he was under the sink. I am also pleased that PureDrop sent extra/replacement gaskets for the system. I bought extra filters for later, but the system I bought also came with an extra set. I am telling everyone about this in hopes they can have no fluoride/chlorine water. I plan on buying another system for my brother as a gift. Four-year Update: Costumer service is great except the product is awful. Three tanks later, they continually rupture, we bought a counter version. Something is wrong with the design of the tank, and it continues to rupture the bladder inside. After the last time they sent us a replacement tank, it was three days until it ruptured as well. One of the filters had a slow leak. We found out when the cabinet floor caved in, and we heard the tank fall over. We bought the system thinking it would be no hassle, but it turned into huge hassles. The countertop purification we bought is easy to use and we can keep an eye on it, plus we never have to call and get new parts and install them. Good luck, hope this helps. ... show more
Reviewed in the United States on February 28, 2020 Reviewed in the United States on February 28, 2020 by Starla Stone
Works well, quite a bit of waste water
Style: 5 stage RO water system
Overall I am really happy with this RO system. I had initially purchased one from a different company, where the drain wouldn't shut off. That company had zero customer support and I wasted several hours installing it, trying to troubleshoot it myself, complaining to amazon help, and then uninstalling it and returning. This one, the installation was easy. I followed instructions to flush the filters and the tank. Water tastes great. Good value for money and my low income self. I have the waste water draining into buckets and I use the water to do my laundry and to water my non-fruit tree. The only reason for 4 stars is that I am really amazed at how much waste water there would be if I wasn't using it. I get about 4 gallons of waste for every gallon of filtered water. My water was EXTREMELY hard- I had tried another filter that gets all chemicals out, and the minerals were actually making me sick, so it's worth it. I wish there was more awareness about the waste of RO systems and how to be more conscious about using this water. Or it seems like there should be a way to run the water through the filters twice. I just feel there is room for innovation in the water filtration world! ... show more
Reviewed in the United States on September 25, 2023 by reviewstar
How it works
Checking for best price...