Reverse osmosis (RO) is one of the most effective water filtration methods to remove and reduce contaminants like lead, arsenic, and chromium from drinking water. However, whole-house RO systems aren’t cheap, and you may not need filtered water coming out of all faucets in the house. This is where portable reverse osmosis systems come into play.
A countertop reverse osmosis water filter uses reverse osmosis technology to provide filtered water on-demand. They are designed to fit small spaces such as the kitchen countertop or the dining table. Countertop systems don’t require drilling or drain line connection for installation, which makes them an ideal choice for students or apartment renters who have limited space.
The best countertop reverse osmosis system in 2023 is the AquaTRU RO Water System which offers 4-stages of reverse osmosis filtration, 1 gallon water tank capacity, 4:1 waste water ratio and NSF certification to remove drinking water contaminants like lead, fluoride, chlorine and PFAS.
Here are the most important factors to consider in a countertop ro system:
- Your water source (tap or well water). Not all countertop ro systems filter well water.
- The system’s filtration technology (i.e number of filtration stages, contaminants removed, e.t.c)
- The system’s waste water ratio
- NSF certifications
- The system’s water storage capacity
- The product warranty
Countertop RO Systems Comparison Table
- Contaminants removed: 82 contaminants, including lead, chromium, fluoride, chlorine, and VOCs
- Capacity: 1-gallon water tank
- Wastewater ratio: 1:1
- Size: Length: 14”; Width: 14”; Height: 12”
- NSF Certifications: NSF/ANSI Standard 42, 53, 58, and 401
- Warranty: 1-year
- Contaminants removed: Lead, heavy metals, virus, bacteria, fluoride, and TDS
- Capacity: 1.32 gallon water tank
- Wastewater ratio: 3:1
- Size: Length: 13.8”; Width: 7.9”; Height: 16.3”
- NSF Certifications: Not certified
- Warranty: 1 year limited warranty
- Contaminants removed: Lead, heavy metals, virus, bacteria, fluoride, and TDS
- Capacity: 0.8 gallon water tank
- Wastewater ratio: 3:1
- Size: Length: 17.1”; Width: 7”; Height: 15.6”
- NSF Certifications: Not certified
- Warranty: 1 year limited warranty
- Contaminants removed: Lead, heavy metals, chemicals, bacteria, fluoride, and TDS
- Capacity: 1 gallon water tank
- Wastewater ratio: 5:1
- Size: N/A
- NSF Certifications: Not certified
- Warranty: 1-year limited warranty
- Contaminants removed: Lead, heavy metals, cyst, aesthetic impurities, mercury, and cadmium
- Water capacity: 600 GPD
- Wastewater ratio: 1.5:1
- Size: Length: 14.7”; Width: 5.3”; Height: 15.5”
- NSF Certifications: Not certified
- Warranty: 1 year warranty
- Contaminants removed: Lead, chemicals, chlorine, and TDS
- Water capacity: 50 GPD
- Wastewater ratio: No info
- Size: Length: 6”; Width: 4”; Height: 8.5”
- NSF Certifications: Not certified
- Warranty: N/A
Best Countertop Reverse Osmosis Systems:
- Best Overall: AquaTru Reverse Osmosis Water System – AquaTRU offers NSF-certification for over 82 water contaminants like lead, fluoride, arsenic, chlorine and PFAS. It is compact system that fits just about any flat top surface. | (Jump to Review)
- Runner-Up: Waterdrop K19 Countertop Reverse Osmosis Water Filter System – The K19 offers a slick design, UV sterilization, adjustable water capacity, and a 3:1 wastewater ratio. | (Jump to Review)
- Best Portable Dispenser System: Waterdrop WD1 Countertop Reverse Osmosis Water Dispenser – Waterdrop WD1 offers a compact and portable water dispenser with a UV-light sterilizer to kill pathogens. | (Jump to Review)
- Best Countertop RO System for Hot Water: NU Aqua 4-Stage Countertop Reverse Osmosis System with Hot Water – Unlike other RO systems that can only filter cold water, this Nu Aqua countertop RO system also delivers hot water. | (Jump to Review)
- Best Tankless RO System wiith Remineralizer: Frizzlife PD600 Tankless Reverse Osmosis System – The frizzlife tankless system not only removes contaminants but also adds healthy minerals back into the water. | (Jump to Review)
- Best Budget-Friendly Countertop RO System: PuroSmart High Flow RO Countertop Home Water Treatment System – Mounted to a faucet, PuroSmart affordably provides healthy drinking water and is suitable for use in a portable home or RV. | (Jump to Review)
1. AquaTru Reverse Osmosis Water System – Best Overall
AquaTru Reverse Osmosis Water System is the best portable reverse osmosis system because it offers 4-stages of RO filtration, 1 gallon water tank capacity, 4:1 waste water ratio and NSF certification to remove drinking water contaminants like lead, fluoride, copper, barium, radium chlorine and PFAS.
The 4-stages of filtration is broken down as follows:
- Mechanical pre-filter: It prevents large particles like sediment from entering the system and hindering the filtration process.
- Activated carbon filter: It reduces the majority of aesthetic impurities like chlorine and chloramines, improves turbidity, and reduces the presence of chemicals and heavy metals, thus easing the work of the RO membrane.
- RO membrane: This highly effective RO membrane is responsible for the removal rates listed in the data sheet.
- Activated coconut shell carbon VOC filter: It’s designed to trap volatile organic compounds (VOCs) that might have escaped through the RO membrane.
In addition to these 4-filtration stages, this system has two tanks: a 3-gallon tap water tank and a 1-gallon filtered water tank. Once you plug in the device and fill the tap water tank with water, you’ll start getting filtered water in a matter of minutes. What’s even better is that the filtered water tank is totally separable from the unit. So, on hot summer days, you can simply put the water tank in your fridge for cold, filtered water.
That being said, one downside is that the AquaTRU filters aren’t as long-lasting compared to the other options in this article. Depending on your usage, the LED display of the unit will likely inform you of a filter change in just 4 to 6 months.
Also, its wastewater ratio of one cup down the drain for one cup of filtered water makes it the least ecological option in comparison to other systems.
- Contaminants removed: 82 contaminants, including lead, chromium, fluoride, chlorine, and VOCs
- Capacity: 1-gallon water tank
- Wastewater ratio: 1:1
- Size: Length: 14”; Width: 14”; Height: 12”
- NSF Certifications: NSF/ANSI Standard 42, 53, 58, and 401
- Warranty: 1-year
- NSF-certified and comes with a performance data sheet
- Efficient RO membrane
- Features a separable filtered water reservoir
- Features a VOC filter
- You’ll need to replace filters frequently
- High wastewater ratio
- Expensive
2. Waterdrop K19 Countertop Reverse Osmosis Water Filter System – Runner-Up
The Waterdrop K19 may not have all the necessary NSF certifications, but it offers a slick design, UV sterilization, adjustable water capacity, and 3:1 wastewater ratio.
Similar to AquaTRU, the Waterdrop K19 filters water in 4-stages:
- Polypropylene (PP) cotton to block sediments
- Carbon block
- RO membrane to remove contaminants
- UV-light sterilizer to kill viruses and bacteria.
Unlike AquaTru (our top pick), however, the Waterdrop K19 only has a single filter cartridge that only requires yearly replacement. This makes it one of the cheapest-to-maintain countertop ro system.
Another distinguishing feature between AquaTRU and Waterdrop K19 is that the k19 has no tank to store already filtered water. This means the water is filtered on-demand, just put tap water into the water tank and it will be filtered when you need it.
The unfiltered water tank measures 170 oz (1.32 gallon), making it one of the largest options in this article. The tank can provide a full day water supply for a family of 2 or 3. It comes with four different water-dispensing options (4 oz, 8 oz, 16 oz, and 3 2oz), so you can fill your cup with only as much water as you need.
The only real drawback we found is the lack of NSF-certification. However, this isn’t a deal breaker since the lack of NSF certification doesn’t necessarily make it a bad product. User feedback confirms the Waterdrop K19 works as advertised.
- Contaminants removed: Lead, heavy metals, virus, bacteria, fluoride, and TDS
- Capacity: 1.32 gallon water tank
- Wastewater ratio: 3:1
- Size: Length: 13.8”; Width: 7.9”; Height: 16.3”
- NSF Certifications: Not certified
- Warranty: 1 year limited warranty
- UV-light to sterilize the water from pathogens
- 4-stage filtration process handled only by one filter cartridge
- 170 Oz water tank
- Sleek design
- Not certified by NSF
- Not compatible with well water
3. Waterdrop WD1 Countertop Reverse Osmosis Water Dispenser – Best Compact and Portable Dispenser System
The Waterdrop WD1 has all the key features of its sibling, the K19 model, but it’s smaller, more portable, and has a more modest price tag. We really like how easy it is to carry!
Similar to the K19, the Waterdrop WD utilizes a 4-stage filtration process:
- PP cotton
- Carbon block
- RO membrane
- UV-light.
The only difference is that with the Waterdrop WD1, the filtration process takes places in 2 cartridges instead of one cartridge like the Waterdrop K19.
One of these two cartridges houses the polypropylene sediment filter and carbon block, and this particular cartridge needs to be replaced once every 6 months. The RO membrane has a fairly longer lifespan of 18 months.
Despite their difference in filtration, the Waterdrop WD1 is equally as effective against contaminants as the K19. It reduces the presence of heavy metals, TDS, chlorine, nitrates, and aesthetic impurities to a great extent, thus providing healthy, clean, and great-tasting water.
The LED display, water-dispensing options, and wastewater ratio (3:1) are the same as on its sibling model, the K19. One difference is that the water tank has only a 0.8 gallon capacity, which makes it a more reasonable option for single people or couples without a child.
That being said, it also inevitably shares the same disadvantage as the Waterdrop K19; lack of NSF certification.
- Contaminants removed: Lead, heavy metals, virus, bacteria, fluoride, and TDS
- Capacity: 0.8 gallon water tank
- Wastewater ratio: 3:1
- Size: Length: 17.1”; Width: 7”; Height: 15.6”
- NSF Certifications: Not certified
- Warranty: 1 year limited warranty
- UV-light to sterilize the water from pathogens
- Compact and portable
- RO membrane has an 18-month lifespan
- Sleek design
- Not certified by NSF
- Not compatible with well water
- 0.8 gallon water tank might not be accommodating for all families
4. NU Aqua 4-Stage System – Best Countertop RO System With Hot Water
Unlike other RO systems that can only filter cold water, the Nu Aqua countertop RO system also delivers hot water as well. This is thanks to the instant water heating system that allows it to operate efficiently with water temperature higher than 77F. In addition, with the Nu Aqua, you’re able to adjust the water heater in accordance to how hot you want the water to be.
Similar to the Waterdrop models, Nu Aqua countertop RO system directly filters tap water from the 1-gallon tank to its spigot and lets you choose how much water you want it to dispense on demand with 4 oz, 8 oz, 16 oz, and 32 oz options.
Like the Waterdrop WD1, it has two different filter cartridges to be replaced once every 6 months. The first cartridge has a sediment filter which prevents large particles from entering the system, and a carbon block filter, which removes aesthetic impurities, chlorine, VOCs, chemicals, and bacteria like giardia.
The second cartridge features a highly-rated reverse osmosis membrane to filter chemicals, heavy metals, and TDS with superb efficiency. Lastly, the water passes through a granular activated carbon filter that removes whatever residue is left from the previous filtration processes.
Considering the efficiency of its RO membrane, the 5:1 wastewater ratio is all the more impressive, making it the most eco-friendly product in this article.
One final benefit worth mentioning is that the Nu Aqua countertop RO system filters both tap and well water, but with the condition that the original TDS levels of the well water should be below 500 ppm (parts per million). This is a huge bonus considering that most portable reverse osmosis systems don’t filter well water.
- Contaminants removed: Lead, heavy metals, chemicals, bacteria, fluoride, and TDS
- Capacity: 1 gallon water tank
- Wastewater ratio: 5:1
- Size: N/A
- NSF Certifications: Not certified
- Warranty: 1-year limited warranty
- It can work with hot water
- Efficient filtration technology
- 5:1 wastewater ratio is eco-friendly
- It filters well water with TDS below 500 ppm
- Not certified by NSF
- Filter replacement once every 6 months might become costly in the long term
- Expensive
5. Frizzlife PD600 Tankless System – Best Tankless RO With an Alkaline Remineralizer
Frizzlife is the best choice if you’re looking for a tankless ro system that adds back the filtered minerals.
It is common knowledge that reverse osmosis also filters healthy minerals from water, making it slightly acidic. These minerals can be added back though remineralization by using water filter systems like the Frizzlife PD600.
Frizzlife RO system filters water in the following stages:
- A pleated sediment filter prevents large contaminant particles from entering the system.
- Two activated carbon layers reduce the presence of aesthetic impurities, chemicals, and heavy metals.
- A 0.0001-micron RO membrane removes many problematic contaminants, including lead, mercury, cadmium, arsenic, asbestos, and microbial cysts.
- A carbon block filters any contaminant residue left.
- A weak alkaline filter water introduces healthy minerals back into the water and resets the pH of water at more than 7.5, thus producing alkaline water.
These processes take place in three filter chambers: the first two steps occur in the 1st stage filter chamber, the third step happens in the 2nd-stage filter chamber, and the last two steps takes place in the 3rd stage filter chamber. While the 1st and 3rd stage filters need replacing once every 12 months, the RO membrane can last for two years, which makes the Frizzlife device one of the most durable systems in this article.
The Frizzlife is a tankless system that saves a lot more space than a typical countertop ro system. Installation is straightforward as seen in this installation video provided by the manufacturer.
- Contaminants removed: Lead, heavy metals, cyst, aesthetic impurities, mercury, and cadmium
- Water capacity: 600 GPD
- Wastewater ratio: 1.5:1
- Size: Length: 14.7”; Width: 5.3”; Height: 15.5”
- NSF Certifications: Not certified
- Warranty: 1 year warranty
- It features a remineralizer and produces alkaline water
- Tankless design saves space
- DIY-friendly installation
- Filters have a longer lifespan than most other RO systems
- No NSF certification
- 1.5:1 wastewater ratio isn’t eco-friendly
- Expensive
6. PuroSmart Home Water Treatment System – Budget-Friendly Countertop RO System
The PuroSmart system offers countertop RO benefits at an affordable price.
Like Frizzlife PD600, PuroSmart is a tankless system, but unlike the Frizzlife, you don’t need to connect the Purosmart system to a water pipe, nor does it require electricity. Instead, it goes straight to your faucet with a single, simple snap. When you want to use that particular faucet for non-drinking purposes like dishwashing, you can simply unsnap it.
The PuroSmart is a tiny device, but don’t be deceived by its compactness as, like all the other products on in this article, it has a carbon block filter that prevents sediments from entering the system. The carbon block is complemented by an RO membrane that removes heavy metals, chemicals, aesthetic impurities, and 99.9% TDS, which makes it very effective for its size and price range.
However, the replacement requirements of these two filters might be a major downside for many. The projected lifespan of the carbon block filter is only 3 months, while the RO membrane needs to be replaced once every 6 to 12 months depending on the use.
Unlike other devices in this article, the PuroSmart RO System doesn’t have an LED display to notify for filter change. Failing to identify when the filters are worn-out can render the system ineffective.
- Contaminants removed: Lead, chemicals, chlorine, and TDS
- Water capacity: 50 GPD
- Wastewater ratio: No info
- Size: Length: 6”; Width: 4”; Height: 8.5”
- NSF Certifications: Not certified
- Warranty: Contact the manufacturer
- Extremely affordable
- Compact and portable
- You can simply uninstall it when you don’t need treated water
- Perfect for single households or portable homes
- Filters don’t last long
- It doesn’t have a LED display
- Not certified by NSF
Our Review Criteria for Countertop Reverse Osmosis Systems
We evaluated countertop RO systems in this article based on the following criteria:
- Contaminants removed
- NSF certifications
- Water/filtration capacity
- Wastewater ratio
- Maintenance requirements
- Warranty
- Price
Contaminants Removed
The first aspect to look at when purchasing a RO system should be the system’s ability to remove common water contaminants like lead, chlorine and PFAS. To scientifically determine how many contaminants a RO system removes, the device is tested by an independent lab. However, not all manufacturers bother to get their products tested nor provide customers with the test report.
Of all products we evaluated, only the AquaTru Countertop RO System comes with a performance data sheet prepared by an independent lab. This sheet shows that the unit can remove up to 82 contaminants with more than a 95% success rate.
Although the product page for the Nu Aqua, Frizzlife, and Waterdrop models claim that these units can remove more than a thousand contaminants, these claims aren’t supported by independent testing.
| Countertop RO Systems | Contaminants Removed |
|---|---|
| AquaTru RO System | 82 |
| Waterdrop K19 Water Filter System | Not specified |
| Waterdrop WD1 Water Dispenser | Not specified |
| Nu Aqua 4-Stage RO System | Not specified |
| Frizzlife Tankless RO System | Not specified |
| PuroSmart High Flow RO System | Not specified |
NSF Certifications
The National Sanitation Foundation (NSF) is a non-profit organization that tests and evaluates the health impact of products in a variety of industries, from automotive parts to water treatment systems. NSF certifications serve to assure customers that the health claims a manufacturer makes about their product are supported by scientific data.
However, most RO system manufacturers overlook the importance of these certifications, even though they can inspire trust in the customer base. Again, the only product in this article that holds relevant certifications is the AquaTru Countertop RO System:
- NSF/ANSI 42: It certifies that the device is capable of removing aesthetic impurities that affect the taste, color, and odor of water, as regulated under the National Secondary Drinking Water Regulations by EPA.
- NSF/ANSI 53: It certifies that the device can reduce contaminants that have health effects as determined by the EPA-set National Primary Drinking Water Regulations (NPDWRs) in the case of the United States and Health Canada in the case of Canada.
- NSF/ANSI 58: Applying only to RO systems, it certifies that the device operates by properly pushing water through a semipermeable membrane.
- NSF/ANSI 401: It certifies that the device is capable of removing at least 15 of the emerging contaminants. Emerging contaminants, or contaminants of emerging concern, are those that aren’t aesthetic impurities but that are not yet regulated under NPDWRs by EPA either.
| Countertop RO Systems | NSF Certifications |
|---|---|
| AquaTru RO System | NSF/ANSI 42, 53, 58, and 401 |
| Waterdrop K19 Water Filter System | N/A |
| Waterdrop WD1 Water Dispenser | N/A |
| Nu Aqua 4-Stage RO System | N/A |
| Frizzlife Tankless RO System | N/A |
| PuroSmart High Flow RO System | N/A |
Water/Filtration Capacity
There are two types of countertop RO filtration devices in this article: systems with a water tank (#1 to #4: the AquaTru, both Waterdrop models, and the Nu Aqua), and those that are directly connected to a faucet (#5 and #6: the Frizzlife and PuroSmart systems).
For the former category, their water capacity indicates how much water the tanks can hold and filter. For the latter, since they don’t have a tank, the most important criterion is their flow rate and, subsequently, how much water they can filter per day.
The Waterdrop K19 is the clear champion of the first category with its 170 oz (1.32 gallons) water tank. Although the AquaTru can hold 3 gallons of water in its tank for unfiltered water, its filtered water tank can only provide a gallon.
| Countertop RO Systems (with tank) | Water Capacity |
|---|---|
| AquaTru RO System | 1 gallon |
| Waterdrop K19 Water Filter System | 1.32 gallons |
| Waterdrop WD1 Water Dispenser | 0.8 gallons |
| Nu Aqua 4-Stage RO System | 1 gallon |
Among the faucet RO devices, the Frizzlife has a fair bit of advantage over the PuroSmart. While the former can provide 600 gallons of clean water per day, that latter provides only 50 gallons.
| Countertop RO Systems (faucet-connected) | Filtration Capacity (gallons per day) |
|---|---|
| Frizzlife Tankless RO System | 600 GPD |
| PuroSmart High Flow RO System | 50 GPD |
Wastewater Ratio
Yes, the RO process removes or reduces lots of contaminants, but produces waste water by doing so. Some whole house RO systems can even send 5 cups of wastewater down the drain to produce just a cup of drinkable water.
Countertop water filter systems are considerably less wasteful than whole house RO units because 1. their membranes are less effective, and 2. they don’t have a drain hose. Still, we’ve seen countertop systems that waste 4 cups to provide just one purified cup.
So, to be as eco-friendly as possible and to prevent high water bills, it’s best to opt for a system that has a low wastewater ratio.
Among the products we recommend, the system with the best waste water ratio is the Nu Aqua 4-stage Countertop RO System. It only wastes one cup of water to produce five healthy cups.
The manufacturer of the PuroSmart option, however, doesn’t provide info on this particular spec.
| Countertop RO Systems | Wastewater Ratio (Pure water: Wastewater) |
|---|---|
| AquaTru RO System | 1:1 |
| Waterdrop K19 Water Filter System | 3:1 |
| Waterdrop WD1 Water Dispenser | 3:1 |
| Nu Aqua 4-Stage RO System | 5:1 |
| Frizzlife Tankless RO System | 1.5:1 |
| PuroSmart High Flow RO System | Not specified |
Maintenance Requirements
Semi-permeable RO membranes usually require replacement once every year, but it ultimately depends on the manufacturer instructions and how frequent you use the system. Luckily, with the exception of PuroSmart, all the devices in this article have LED displays that’ll let you know when it’s time to replace the filters.
However, the RO membrane isn’t the only filter that needs replacing. Most of the devices we evaluated also feature carbon filters and pre-filters that you should replace once every 6 months.
In that sense, the most low-maintenance system on our list is the Waterdrop K19. Only its RO filter needs replacing once every 12 months.
We should also mention the Frizzlife Tankless RO System at this point. Although it has three different filters that needs replacing, the replacement frequency of these filters is one to two years.
The PuroSmart High Flow RO System, on the other hand, has a carbon block filter that has a rated lifespan of only 3 months, which is the lowest of all.
| Countertop RO Systems | Filter(s) Replacement Frequency | RO Membrane Replacement Frequency |
|---|---|---|
| AquaTru RO System | 4 to 6 months | 6 months |
| Waterdrop K19 Water Filter System | Not applicable | 12 months |
| Waterdrop WD1 Water Dispenser | 6 months | 18 months |
| Nu Aqua 4-Stage RO System | 6 months | 6 months |
| Frizzlife Tankless RO System | 12 months | 24 months |
| PuroSmart High Flow RO System | 3 months | 12 months |
Warranty
It’s always a big plus when expensive devices that have electronic parts like LED displays have a good warranty.
However, we should note that most of these devices can only handle water conditions that are specified in the instruction manuals, and the manufacturer can void the warranty if you don’t comply with the specifications. So, carefully examine the instruction manual as well as the fine print on your warranty before use.
All the products in this article have a one-year warranty, with the exception of the PuroSmart High Flow RO System. The manufacturer of the PuroSmart High Flow RO System doesn’t disclose what the warranty for this product is, so should you opt for that particular device, you need to contact their customer service to learn about your options.
| Countertop RO Systems | Warranty |
|---|---|
| AquaTru RO System | 1 year |
| Waterdrop K19 Water Filter System | 1 year |
| Waterdrop WD1 Water Dispenser | 1 year |
| Nu Aqua 4-Stage RO System | 1 year |
| Frizzlife Tankless RO System | 1 year |
| PuroSmart High Flow RO System | Not specified |
Price
RO systems are among the most expensive water treatment units on the market. Even though the countertop RO systems are fairly more affordable than the whole house ones, their price range is still higher than the non-RO systems: $300 – $500.
That said, the PuroSmart is quite an exception among its peers as it only costs $104.99. The Frizzlife Tankless RO System, on the other hand, represents the other end of the range on our list with a $469.99 price tag.
| Countertop RO Systems | Price |
|---|---|
| AquaTru RO System | $449.00 |
| Waterdrop K19 Water Filter System | $399.00 |
| Waterdrop WD1 Water Dispenser | $299.00 |
| Nu Aqua 4-Stage RO System | $447.71 |
| Frizzlife Tankless RO System | $469.99 |
| PuroSmart High Flow RO System | $104.99 |
Frequently Asked Questions
The AquaTru RO System removes over 82 drinking water contaminants such as lead, chlorine, fluoride, mercury and PFAS.
Most countertop reverse osmosis systems cost between $100 – $500 depending on the brand and product specifications.
Countertop reverse osmosis systems typically have a life expectancy of 10 to 15 years, but it ultimately depends on the maintenance frequency.
Yes you can but it largely depends on the manufacturer. Not all countertop ro systems can filter well water can damage the device, but systems like the Nu Aqua 4-Stage can comfortably filter well water.
Conclusion
To sum up, if you’re looking for an effective and reliable system, you should look no further than the AquaTru Countertop RO System. It is NSF-certified, and its filtration capabilities are well-documented by independent test results.
The two Waterdrop models, the K19 and WD1, are sleekly designed units that’ll look pretty on any countertop. Their 4-stage filtration is nothing short of exemplary either.
For those who’re looking for a system that’s compatible with hot water and well water, our recommendation is the Nu Aqua System. If you don’t want to lose healthy minerals during the filtration process, the Frizzlife RO System with Alkaline Remineralization should be your go-to product.
And lastly, the PuroSmart system is a portable, easy-to-use, and budget-friendly option.
