5 Series UR5640 RO Water Purifier
Ideal for large households over 4 people, this modern, tankless reverse osmosis water filtration system can filter up to 3,900 water bottles (16.9 fl oz)¹. It fits right under your sink to give your family quick access to cleaner, purer water.
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Through a combination of high-quality reverse osmosis (RO) and carbon filters with anti-scaling materials, Pureit’s proprietary DURAViva filtration technology removes contaminants down to 0.0001 μm³. That’s 700,000x smaller than a human hair⁴!
Independently tested to reduce bacteria and viruses from your water so every drop of tap water is fresher, safer and more pure⁶.
Independently tested to remove selected heavy metals and industrial pollutants including lead, cadmium, and chromium III by over 99%⁶.
Designed with BPA-free materials⁷ and certified to NSF 372 standards for lead-free materials⁷.
Easily change filters in four simple steps with our snap in, snap out design
High-capacity filtration system can produce the equivalent of over 3,900 water bottles (16.9 fl oz) or 1,400 water pitchers (48 fl oz) per day⁸.
One of the few tankless, reverse osmosis water filtration brands to be independently certified for durability, quality and safety by the Water Quality Association (WQA).
Intuitive interface and filter lifetime indicator reminds you when and which filter needs to be replaced, making maintenance a breeze.
Pureit’s unique DURAViva technology maintains filtration and flow rate performance and reduces clogging.
Even when tested in harder water conditions, Pureit water filtration systems can produce up to 30% more clean water, maintaining filtration and flow rate with minimal drop off over their lifespan².
The space saving, tankless design is up to 40% more compact than many RO tank water purifiers. It fits discretely under your sink so you can have pure water without sacrificing space.
Eliminate the long wait for filtered water. Our system is designed to provide a consistently fast flow rate of water — so you can fill a 6oz glass with purified water in just 8 seconds¹.
Engineered to provide high performance that does not fade, so your family can have more pure water for longer.
Part of the Unilever family of brands.
Filter Life Indicator: Yes
Built-in automatic flushing: Yes
Water leakage alarm: Yes
Wi-Fi connectivity / app: No
Filter TypeReverse Osmosis Membrane Filter
Dimensions16.14 X 5.51 X 14.17
Product weight19.89 lbs
Recommended filter changeComposite Filter FUR54PGP - Filter Life 6-12 Months Carbon Block Filter FUR54CTO - Filter Life 6-12 Months Reverse Osmosis Membrane Filter FUR54RO - Filter Life 2-3 Years
Number of filters3
Filtered Water flow0.42 Gal/min
- Electrical supply required: Yes
- Electrical voltage: 100-240V power outlet with type A plug
- Required 1" hole in the countertop for the Pureit faucet: Yes
- Applicable water temperature: 41°F - 100°F (5°C - 38°C)
- Maximum counter thickness: 1.7"
- DIY install possible: Yes [link to Installation page]
- Under sink space required: Yes. Pureit device is 16.14" x 5.51" x 14.17"
- Do not install the water purifier in a location with direct sunlight.
- Compatible with copper piping: No
- Proximity to drainpipe: Please install within 5 feet of the drainpipe
We stand by our high-quality products with extended warranty coverage when you register your water purifier.
The Water Quality Association (WQA) is a leading voice of the commercial, industrial and residential water treatment industry. Pureit is one of the few tankless, RO water purifier brands that is WQA Gold Seal-certified. This is reserved only for products that pass the rigorous testing requirements of industry standards for quality, durability, and safety. This ensures that the product is constructed from safe materials, the claims listed on the packaging are backed by test data, and the product will hold up under normal usage conditions.
Yes, both models have a built-in automatic flushing that will flush your water purifier for 30 seconds if it has not been used for 12 hours.
PGP/CTO filter: Recommended 6 – 12 months
RO filter: Recommended 2 - 3 years
The Pureit UR5440/UR5640 water purifiers have a built-in filter life indicator that will remind you when it is time to replace your filter. Actual replacement time will vary by usage and local water conditions.
Currently, Pureit is offering a Pro Service in selected cities, please contact the Customer Support team [firstname.lastname@example.org] for a plumber referral and more information.
1- Testing was performed under standard laboratory conditions with water hardness of 230 - 270 mg/L, TDS 450 - 550 mg/L. Actual filtered water flow rate may vary.
2- Compared to without DURAviva technology. Testing was performed under standard laboratory conditions with water hardness of 230 - 270 mg/L, TDS 450 - 550 mg/L. Actual filter performance may vary.
3- Tested on TDS (90%), lead/cadmium/chromium III (99%), measured up 4800L (UR5440) and 7000L (UR5640) without filter replacement. [Learn more us.pureitwater.com/why-pureit]. Not all contaminants listed may be present in your water. Depending on local water quality and use environment, actual performance may vary.
4- A human hair is approximately 70 μm
5- Tested on raoultella and MS2.
6- See Performance Data Sheet.
7- Materials that come in contact with water.
8 -UR5640 has a measured daily production rate of 569 gallons per day. See Performance Data Sheet