If you’re looking for a water purifier for your kitchen and want to keep your countertop tidy, a built-in water purifier is an attractive option. The unit and cartridge are hidden under the sink, leaving only the filtered-water faucet on the countertop, so it’s convenient to use and there’s no bulky purifier sitting on top.
If you’re interested in a Cleansui built-in water purifier but can’t decide which model to choose, this article compares the models in Cleansui’s Built-In range, from standard models to those with a mixer faucet and those with an alkaline water system, to help you find the one that best suits your home and how you use it.
What Is a Cleansui Built-In Water Purifier?
A Cleansui built-in water purifier is a filtration system designed to be installed under the sink or kitchen counter. The filter unit sits below and connects to a faucet mounted on the countertop, so the work area above looks cleaner and tidier than with a countertop water purifier.
Another advantage is that it takes up no counter space, and filtered water is ready the moment you turn on the faucet. That makes it ideal for homes with Built-In kitchens or anyone who wants to keep their kitchen neat and uncluttered.
Cleansui’s Built-In models differ in faucet style, filtration capacity, and cartridge life, as well as in extra features such as a mixer faucet or an alkaline water system. So there’s no single answer to “which model is best.” The right choice is the one that best matches how you use it.
How Many Cleansui Built-In Models Are There?
Waterclick’s current Built-In lineup has four main models worth comparing: the N303, EU101, EU201, and EU202. The EU301 adds an Alkaline Ionizer, making it suited to those who want more than standard filtration. Here’s an overview:
| Model | Type | Highlight | Catridges | Cartridge Life |
|---|---|---|---|---|
| Cleansui N303 | Built-In | Entry-level, compact design | CNC0001T | 1,200 L / approx. 4 months |
| Cleansui EU101 | Built-In | Simple, everyday use | EUC2000 | 8,000 L / 12 months |
| Cleansui EU201 | Built-In + mixer faucet | Pull-out spray faucet | EUC2000 | 8,000 L / 12 months |
| Cleansui EU202 | Built-In + 3-way mixer faucet | Hot, cold, and filtered water from one faucet | EUC2000 | 8,000 L / 12 months |
| Cleansui EU301 | Built-In + Alkaline Ionizer | Filtration plus alkaline water | EUC3000 | 8,000 L / 12 months |
The EU101 uses the EUC2000 cartridge, with a capacity of 8,000 L and a flow rate of about 2.8–3 L/min, while the N303 uses the CNC0001T, with a capacity of 1,200 L.
So although both are Built-In water purifiers, the user experience and long-term running costs differ considerably.
Cleansui Built-In Compared: Which Model Is Best?
For a quick pick, start from the main need each model serves:
- Cleansui N303 is ideal for anyone who wants a simple Built-In system without complicated features.
- Cleansui EU101 is ideal for homes that want a Built-In water purifier mainly for drinking and cooking, with a long-lasting cartridge.
- Cleansui EU201 is ideal for anyone who wants a more flexible mixer faucet, especially those who want a pull-out spout.
- Cleansui EU202 is ideal for kitchens that want hot, cold, and filtered water combined in a single faucet.
- Cleansui EU301 is ideal for those who want more than filtration and are interested in an added alkaline water system.
Next, let’s look at each model in detail.
Cleansui N303: The Entry-Level Built-In Water Purifier
Cleansui N303 is designed for Built-In installation, featuring a compact faucet and simple operation. It suits anyone who wants to install a water purifier under the sink with filtered water on a separate faucet from the main tap.
The N303 uses the CNC0001T cartridge, which has a filtration capacity of 1,200 L and a flow rate of about 2.8–3 L/min. According to Waterclick, it helps reduce substances such as free chlorine, turbidity, trihalomethanes, and soluble lead, as well as certain substances that affect the water’s odor and taste.
The key thing to consider is cartridge life: its 1,200 L capacity is clearly lower than that of the EUC2000 cartridge used in the EU101, EU201, and EU202. If your household is large and uses filtered water regularly, factor in how often you’ll need to replace the cartridge.
Who it’s for
- Homes or condos that want a simple Built-In system
- Anyone who wants filtered water separate from the main tap
- Anyone who cares about faucet size and design
- Anyone who doesn’t need a mixer faucet or alkaline water
If you’re looking for a Cleansui built-in water purifier that’s simple to use, the N303 is one of the options worth comparing.
Cleansui EU101: The Popular Choice for Home Use
Cleansui EU101 is a Built-In water purifier designed for everyday use, with the filter unit installed under the counter and a separate faucet that dispenses filtered water.
The EU101’s key strength is its EUC2000 cartridge, which has a capacity of 8,000 L and lasts about 12 months under the manufacturer’s specified usage conditions. According to Waterclick’s product information, the EU101 has a flow rate of about 2.8–3 L/min and supports water pressure of about 0.7–3.5 bar.
The EUC2000 cartridge combines several components: a Polyethylene Hollow Fiber Membrane, Activated Carbon, Ion Exchange Fiber, and Nonwoven Fabric. The product information lists many substances it has been performance-tested against, such as chlorine, turbidity, chloroform, lead, and certain organic compounds.
Another reason the EU101 appeals to typical households is that it needs no electricity to filter water. It’s a straightforward system: water runs through the filter, and you use the water from the faucet for drinking or cooking.
Who it’s for
- Homes that want a water purifier for daily drinking water
- Anyone who wants the purifier installed under the sink
- Anyone who wants to stop buying and hauling bottled water
- Homes that want a cartridge lasting about 1 year
- Anyone who wants a filtration system that’s simple and easy to use
If you’re asking which Cleansui Built-In model is best for a typical home, the EU101 is the place to start, as it strikes a balance between installation style, filtration capacity, and cartridge life.
Cleansui EU201: For Those Who Want a More Flexible Faucet
Cleansui EU201 is a step up among Built-In water purifiers. The key difference isn’t just the cartridge, but a faucet designed to be more convenient to use.
The EU201 uses the EUC2000 cartridge with a capacity of 8,000 L. Its faucet is about 219 mm high and 217 mm long, with a spray head that pulls out.
This design suits people who cook often, since you can pull out the spray head to fill pots, rinse ingredients, or work around the sink more easily than with a fixed faucet. The trade-off is that the unit costs more than the EU101, so if you don’t need a flexible faucet, the EU101 may be better value. But if the faucet is a key factor in how you use your kitchen, the EU201 is the better fit.
Who it’s for
- People who cook regularly
- Families who use the kitchen sink heavily
- Anyone who wants a pull-out spout
- Kitchens that want a Built-In style faucet
- Anyone willing to spend a little more for convenience
Cleansui EU202: One Faucet for Hot, Cold, and Filtered Water
Cleansui EU202 is clearly different from the EU101 and N303, as it’s designed as a 3-way mixer faucet that combines hot, cold, and filtered water in a single faucet.
According to Waterclick’s comparison data, the EU202’s faucet measures about 158 x 232 mm, uses the EUC2000 cartridge, and installs through a hole of about 36–39 mm.
The main advantage of this system is fewer faucets on your kitchen counter. If your kitchen is designed for a clean, streamlined look and you want less hardware on the sink, the EU202 is an attractive option. Picture everyday use: hot water for washing dishes, cold water for kitchen tasks, or filtered drinking water for a refill, all handled by one faucet designed to do it all.
That makes the EU202 ideal for anyone who isn’t just looking for a water purifier, but wants to redesign their kitchen faucet setup to be more convenient and tidier.
Who it’s for
- Homes being renovated or getting a new kitchen
- Anyone who wants one faucet for multiple functions
- Anyone who wants hot, cold, and filtered water
- Built-In kitchens that value a tidy look
- Anyone who wants fewer faucets on the counter
Cleansui EU301: For Those Who Want Filtered Water Plus an Alkaline System
If you’re looking for a built-in water purifier that does more than standard filtration, the Cleansui EU301 stands clearly apart from the rest of the range, thanks to its Alkaline Ionizer that produces alkaline water after filtration.
The EU301 is an under-sink system that combines a water purifier and an alkaline water system in one. Alkaline water production is controlled with buttons on the faucet, and it uses the EUC3000 cartridge, with a capacity of about 8,000 L or about 12 months under specified usage conditions. The EU301 reduces many types of substances, and after filtration the system goes on to produce alkaline ionized water.
That said, if you’re considering the EU301, think about two things separately: its filtration performance and its alkaline water function. Having an alkaline system doesn’t mean everyone needs this model.
Who it’s for
- Anyone interested in alkaline water
- Anyone who wants more than a standard water purifier
- Homes that want both a filtration system and an alkaline water system under the sink
- Anyone willing to invest more for extra features
If you’re not specifically interested in alkaline water, the EU101, EU201, or EU202 may better match your needs.
View details: Cleansui Alkaline Water Ionizer EU301
Detailed Comparison Table of Every Cleansui Built-In Model
| Feature | N303 | EU101 | EU201 | EU202 | EU301 |
|---|---|---|---|---|---|
| Type | Built-In | Built-In | Built-In + mixer faucet | Built-In + 3-way mixer faucet | Built-In + Alkaline |
| Catridges | CNC0001T | EUC2000 | EUC2000 | EUC2000 | EUC3000 |
| Cartridge capacity | 1,200 L | 8,000 liters | 8,000 liters | 8,000 liters | 8,000 liters |
| Estimated life | 4 months* | 12 months* | 12 months* | 12 months* | 12 months* |
| Flow rate | 2.8–3 L/min | 2.8–3 L/min | Comparable to EUC2000 system | Comparable to EUC2000 system | 2.5–3 L/min |
| Filtered water | ✓ | ✓ | ✓ | ✓ | ✓ |
| Pull-out faucet | – | – | ✓ | – | – |
| Hot/cold/filtered water from one faucet | – | – | – | ✓ | – |
| Alkaline system | – | – | – | – | ✓ |
| Best for | Basic use | Typical homes | Busy kitchens | Built-In kitchens | Alkaline water fans |
*Cartridge life is an estimate based on product conditions and actual usage. Check the recommendations for each cartridge model before replacing.
Which Cleansui Built-In Model Is Right for Your Home?
When choosing a water purifier, don’t look only at the price of the unit. Consider the cost and how you’ll use it over its whole lifespan, because water purifiers need their cartridges replaced on a regular schedule.
If you want a basic system and don’t use much filtered water, the N303 may be enough, but bear in mind its cartridge capacity is far lower than the EUC2000 group.
If you want a water purifier for the family and mostly general use, the EU101 is a great starting point, as it uses the EUC2000 cartridge with an 8,000 L capacity and is purpose-built as a Built-In system.
If faucet convenience matters to you, the EU201 is the better choice, especially for homes that cook regularly and use the kitchen sink often.
If you’re designing a new kitchen and want hot, cold, and filtered water combined in one faucet, the EU202 is the standout choice among standard Built-In water purifiers.
And if your main need is alkaline water, the EU301 is the best fit, since it adds a dedicated Alkaline Ionizer.
How Does Cartridge Life Differ Across Cleansui Built-In Models?
Cartridges are a factor you shouldn’t overlook: even though a water purifier lasts for many years, the cartridge is a part that needs replacing periodically.
The EUC2000 group used in the EU101, EU201, and EU202 has a rated capacity of 8,000 L, and Waterclick states a cartridge life of about 12 months under specified conditions.
The N303, by contrast, uses the CNC0001T, which has a capacity of 1,200 L. So when comparing unit prices, factor in the cost of cartridges and how often you’ll replace them, rather than comparing purchase prices alone.
The EU301 uses its filtration system together with the EUC3000 cartridge, which has a capacity of 8,000 L, and Cleansui states a cartridge life of about 12 months under normal usage conditions.
What Do Cleansui Water Purifiers Filter Out?
Cleansui’s filtration technology in the Built-In range combines several components, notably Hollow Fiber Membrane and Activated Carbon, each of which plays a different role.
According to its specifications, the EUC2000 consists of a Polyethylene Hollow Fiber Membrane, Activated Carbon, Ion Exchange Fiber, and Nonwoven Fabric, with performance data for reducing many types of substances.
That said, choosing a water purifier should start with knowing what problems your home’s water has, such as a chlorine odor, turbidity, or concerns about a specific contaminant, because no water purifier can remove every contaminant completely.
NSF, an organization that tests and certifies drinking water products, also notes that meeting one standard or earning one certification doesn’t mean a product reduces every type of contaminant. Consumers should check whether the certification covers the substances they want to reduce.
So before buying a water purifier, look at the technology it uses, the substances the manufacturer says it reduces, and the relevant standards or test results.
Built-In vs. Countertop: What’s the Difference?
Another common question before buying is whether a Built-In water purifier is a better choice than a Countertop model.
The answer depends on your space and kitchen layout.
Built-In suits homes that want the unit hidden under the sink, a clean-looking counter, and no lost space on top, while Countertop models are easier to install and suit anyone who doesn’t want to drill or modify their counter.
If you’re renovating your kitchen, Built-In has a big advantage, because you can plan the drill hole, water pipes, and under-sink space right from the design stage.
But for condos or homes where modifying the counter isn’t practical, a Countertop model may be the easier choice.
So Built-In isn’t better than Countertop in every case; it suits people who put more weight on design, tidiness, and a permanent installation.
5 Things to Check Before Installing a Built-In Water Purifier
Before ordering a built-in water purifier, check your installation space carefully, because this type of system needs room for the filter unit and plumbing under the sink. Key things to check include:
- Is there enough space under the sink to install the filter unit?
- Can water pipes be routed into the filtration system?
- Can the counter be drilled for the faucet at the required hole size?
- Is the counter thickness within the range the model supports?
- Is there room to replace the cartridge in the future?
For example, the EU101 specifies a mounting hole of about 35–39 mm, while the EU201 and EU202 require a mounting hole of about 36–39 mm, so check the specs of the model you plan to buy before actually drilling your counter. Planning your space from the start helps prevent problems after installation, especially in homes with limited under-sink space or several existing plumbing lines.
Which Cleansui Built-In Model Is Best?
To put it simply, choose a Cleansui built-in water purifier based on how you’ll use it, rather than on the model name or price alone.
- N303 is ideal for anyone who wants a basic Built-In system with a compact design.
- EU101 is ideal for typical homes that want filtered water for drinking and cooking, with an 8,000 L capacity cartridge.
- EU201 is ideal for anyone who wants a pull-out faucet and more flexibility around the sink.
- EU202 is ideal for homes that want a 3-way mixer faucet for hot, cold, and filtered water, especially Built-In kitchens that value a tidy look.
- EU301 is ideal for anyone who wants a filtration system with an alkaline water function.
So if you’re asking which Cleansui built-in water purifier is best, the best answer is the model that matches how your household uses water. If you just want filtered drinking water, the EU101 is a great choice. If faucet convenience matters, the EU201 or EU202 is the better fit. And if you’re specifically interested in alkaline water, the EU301 is the first model to compare.
To see the Built-In models available, have a look at Cleansui built-in water purifiers and check the details of each model before deciding which to buy.
FAQ: Frequently Asked Questions About Cleansui Built-In Water Purifiers
Which Cleansui built-in water purifier is best for a typical home?
For drinking and cooking in a typical home, the Cleansui EU101 is a model worth comparing, as it uses the EUC2000 cartridge, which has a capacity of 8,000 L and lasts about 12 months under specified conditions.
What’s the difference between the Cleansui N303 and EU101?
The key difference is the cartridge: the N303 uses the CNC0001T with a 1,200 L capacity, while the EU101 uses the EUC2000 with an 8,000 L capacity. If you use filtered water regularly, factor capacity and replacement frequency into your decision.
What’s the difference between the Cleansui EU201 and EU202?
Both are Built-In systems using the EUC2000 cartridge, but their faucets differ: the EU201 has a mixer faucet with a pull-out spray head, while the EU202 is a 3-way mixer faucet that delivers hot, cold, and filtered water from one faucet.
How is the Cleansui EU301 different from other water purifiers?
The EU301 adds an Alkaline Ionizer after the filtration process, so it can produce alkaline ionized water in addition to standard filtered water. It suits those who want the extra alkaline water function.
How often do you need to replace the cartridge in a Built-In water purifier?
It depends on the model and how much you use it. The EUC2000 group has a rated capacity of 8,000 L, or about 12 months under specified conditions, while the N303’s CNC0001T has a capacity of 1,200 L, so it needs replacing more often.
Does a Built-In water purifier need electricity?
Built-In water purifiers for standard filtration, such as the N303 and EU101, don’t need electricity to filter water, while the EU301 has an alkaline water system and does require electricity. Check each model’s requirements before installation.
Further Reading
