RKIN U1 Countertop Reverse Osmosis Review 2024


This is our review of the RKIN U1 Countertop Reverse Osmosis System.

Choosing the best Reverse Osmosis system for your household can feel like navigating through a jungle full of jargon and tech specs. Am I right or am I right? 🤷‍♂️ But hey, don’t sweat it! We’ve drawn on our extensive experience in water filtration systems to bring you this comprehensive review of the RKIN U1 Countertop Reverse Osmosis system. We’re all about helping you figure out if this unit is the one your kitchen’s been crying out for.

In our eyes, the RKIN U1 Countertop Reverse Osmosis system is pretty much the LeBron James of RO systems. Yeah, you heard it right! This NSF-certified marvel pairs advanced filtration technology with a user-friendly, sleek design, offering you nothing but the highest-quality, safest water you could drink. 🥤

Strap in, because we’re about to deep-dive into the RKIN U1’s filtration capabilities, design features, performance metrics, and so much more. Ever wondered how much it’ll cost you annually? Or what other users are saying? We’ve got that covered too. By the end of this, you’ll be so well-versed in the RKIN U1, you could practically write a review yourself. 😉

Curious? Good, you should be! Let’s get this show on the road.

RKIN U1 Countertop Reverse Osmosis System Overview

Best Countertop
RKIN U1 Countertop RO System
Filtration Stages: 5
Efficiency Ratio: 1:1
Capacity: 100 GPD
Certifications: Tested for the reduction of TDS, Fluoride, Lead, PFOA/PFOS, Hexavalent Chromium, and Trivalent Chromium
Remineralization: Yes
UV Stage: Yes
Buy on Amazon
We earn a commission if you make a purchase, at no additional cost to you.

What Does RKIN U1 Do? 🤔

Imagine having a personal water barista right on your kitchen countertop, waiting to serve you H2O however you like it—hot, cold, or somewhere in between. That’s what the RKIN U1 Countertop Reverse Osmosis System is all about. This handy unit doesn’t just give you water; it offers a five-stage filtration treatment, covering everything from sediment filters to hydrogen infusion. Just plug it in, fill it up, and you’ve got purified, remineralized water on tap, no plumbing or drill work needed.

Is It Any Good? Spoiler Alert: Heck Yes! 🌟

Let’s cut to the chase. Is RKIN U1 worth the hype? Short answer: Absolutely. Long answer: You’re getting an RO system that filters out up to 99% of contaminants like fluoride, chlorine, and heavy metals. And get this, the water isn’t just clean; it’s also alkaline and antioxidant-rich. So, every sip you take is like a mini spa treatment for your cells. Plus, it’s got a 1:1 waste water ratio, meaning it’s not just great for you, but it’s also friendlier on Mother Earth. 🌍

RKIN U1 Countertop Reverse Osmosis Filtration Capabilities

A Filtering Force to Be Reckoned With 🛡

So, you’re curious about how well this bad boy can filter your water? Well, hold onto your hats, because this is where the RKIN U1 really shines. This system uses a five-stage filtration process, starting with a sediment filter to kick out all those larger particles. Then it moves onto activated carbon and the reverse osmosis membrane to give contaminants the boot. It doesn’t stop there, though. The alkaline and hydrogen infusion stages ensure that you’re not just drinking clean water—you’re drinking health-boosting, delicious water. 🤩

Here is the detail of the different filtration stages:

  • Stage #1: is a high-capacity sediment filter that removes large particles like sand, silt, and rust
  • Stage #2: is a granular activated carbon filter that removes chlorine, chemicals, and organic compounds that affect the taste and odor of your water
  • Stage #3: the core of the system, is a powerful RO membrane that removes dissolved solids and impurities from your water
  • bacteria, and many other contaminants
  • Stage #4: is a remineralization filter that adds beneficial minerals like calcium and magnesium back into the purified water, improving its taste and providing health benefits
  • Stage # 5: is the hydrogen infusion stage in the RKIN U1 system that generates water infused with antioxidants and enriched with hydrogen

The Numbers Don’t Lie 📊

Let’s talk digits. This system is built to remove up to 99% of contaminants. Yup, you heard that right—99%! That includes heavyweights like fluoride, chlorine, pharmaceuticals, and heavy metals.

What’s more, it’s 3rd party tested for reducing TDS (Total Dissolved Solids), Fluoride, Lead, PFOA/PFOS, and both Hexavalent and Trivalent Chromium. All this under the umbrella of NSF certifications. So you can sip easy knowing you’re in safe hands. 🌂

A Little Extra Sparkle ✨

As if all that wasn’t enough, the RKIN U1 also throws in some UV sterilization. This UV light feature makes sure to sterilize the water tank and dispensing nozzle, keeping bacterial growth at bay. But wait, there’s more! The system also adds a remineralization step to make your water not just pure but also delicious and nutritious. 🍋

RKIN U1 Countertop Reverse Osmosis Performance

Bang for Every Drop 💧

Here’s something to smile about—the RKIN U1 is a water-saving champ with a waste water ratio of 1:1. Now, in layman’s terms, what does this mean?

Simply put, for every gallon of purified water it produces, only one gallon goes to waste. That’s pretty phenomenal compared to other RO systems out there, which can waste up to 4 gallons for every gallon purified! Just think of all the houseplants you could water with that saved H2O. 🌱

A Friend to Mother Earth 🌍

Now, if you’re wondering whether this water-saving feature makes the RKIN U1 more eco-friendly, the answer is a resounding “Yes!”

A 1:1 waste water ratio is not just good for your wallet; it’s also kinder to the planet. We’re talking less water down the drain, and that’s something we can all get behind, right? So go ahead, enjoy that crystal-clear glass of water knowing you’re doing a bit for our blue marble. 🌐

RKIN U1 Countertop Reverse Osmosis Capacity

When you’re parched, the last thing you want to do is wait around for your water. Good news: with the RKIN U1, you won’t have to. Boasting an impressive flow rate of 0.07 GPM and a daily production capacity of 100 GPD, this system is designed for those of us who don’t like to wait. Whether you’re filling a glass, a jug, or a water bottle for your workout, the RKIN U1 delivers. Simply put, it can churn out water at a rate that’s fast enough to quench even the most insatiable thirsts.

The U1 has a half-gallon water tank that can be filled in 7 minutes, which is more than enough for most daily uses. The tank is made of high-quality, BPA-free plastic and is easy to remove for cleaning or refilling. It’s also worth noting that the tank is not pressurized, which means that the water is dispensed using gravity rather than a pump.

But what do these numbers mean in the real world? Let’s break it down. A flow rate of 0.07 GPM means you won’t be twiddling your thumbs waiting for your glass to fill. Plus, the 100 GPD ensures that you’re well-supplied, whether it’s for drinking, cooking, or any other household need. It’s like having a high-speed internet connection, but for your water.

RKIN U1 Countertop Reverse Osmosis Design Features

No one wants a water filter that looks like it was dragged out of a 1970s basement, am I right? The RKIN U1 Countertop Reverse Osmosis system delivers not just on functionality but also in style.

This is a countertop dispenser type, which already gives it a modern edge compared to the classic undersink RO systems that remain hidden in the cabinet. It stands proudly on your countertop, flaunting its sleek and modern design that complements almost any kitchen decor.

But let’s talk features because this beauty isn’t just skin deep. There’s no auto-flush here, but there are other perks to make up for it. The RKIN U1 sports a touchscreen display that allows you to choose between different water temperatures and even customize cup sizes for dispensing.

Want your water ice-cold or a little toasty? You’re the boss. And you can set reminders for filter replacements so that you don’t have to remember yourself—how considerate is that?

In addition to its user-friendly interface, the U1 is built to last. The unit is made of food-grade ABS plastic and stainless steel, ensuring that it will withstand regular use and remain in top condition for years to come. The filters are also made of high-quality materials, designed to last and provide top-notch filtration performance.

Another key feature of the U1 is its noise-reduction design. The unit is built to operate quietly, with a built-in noise reduction pump that reduces noise during operation. This makes the U1 an excellent choice for use in a variety of settings, from the home to the office or even a small restaurant or café.


RKIN U1 Countertop Reverse Osmosis Annual Costs

Ah, the numbers—the real game-changer, right? Let’s not beat around the bush. Owning an RKIN U1 isn’t just a one-time splurge; there are annual costs to consider for filter replacements. Below is a nifty little table breaking down what you might expect to spend in a year to keep your water tasting like it came from a mountain spring.

  1. U1 RKIN 2-in-1 Sediment and Carbon Pre-Filter QT Series
    Filter Duration: 12 months
    Buy Now

    We earn a commission if you make a purchase, at no additional cost to you.

  2. U1 RKIN 200 GPD Reverse Osmosis Membrane QT Series
    Filter Duration: 24 months
    Buy on RKIN

    We earn a commission if you make a purchase, at no additional cost to you.

  3. U1 RKIN AlcaPure Alkaline Post Filter QT Series
    Filter Duration: 12 months
    Buy on RKIN

    We earn a commission if you make a purchase, at no additional cost to you.

  4. U1 RKIN PEM Hydrogen Module
    Filter Duration: 12 months
    Buy on Amazon

    We earn a commission if you make a purchase, at no additional cost to you.

  5. U1 2-Year Filter Bundle
    Filter Duration: 24 months
    Buy on RKIN

    We earn a commission if you make a purchase, at no additional cost to you.

So, what’s the bottom line? You’ll be setting aside roughly $144.83 per year for filter replacements. But hey, if you’re the type who loves a good package deal (who doesn’t?), RKIN offers a 2-year combo for $290. That breaks down to about $145 per year—practically the same as buying the filters individually.

Here’s the fun part: Your investment keeps you supplied with water that’s not just clean but also rich in hydrogen. 🌟 So, do you consider it a necessary expense or a tiny luxury for quality life?

RKIN U1 Countertop Reverse Osmosis Installation & Maintenance

You’ve made it this far, so you’re probably pretty serious about the RKIN U1. And if you’re anything like me, you’re likely wondering, “How much of a headache is this going to be to install and maintain?” Great news! The RKIN U1 scores high marks for user-friendliness. 🛠️

So, here’s the thing: the RKIN U1 Countertop Reverse Osmosis system is virtually hassle-free when it comes to “installation,” which really is more like an initial setup. Honestly, you could probably set it up faster than you can say “reverse osmosis” five times fast.

Fill the tank, plug it in, and you’re good to go. That’s it—no wrenches, no plumber’s tape, and definitely no weekend-busting DIY projects.

All you need to do is find a suitable location in your kitchen, plug it into an electrical outlet, and the unit is ready to use. The manufacturer recommends running two full filtration cycles the first time you set up the system, which should take about 30 minutes.

And if you’re worried about ongoing maintenance, don’t be. It’s still that easy. Just follow the guidelines for filter replacements, which we talked about in the Annual Costs section, and your RKIN U1 will be serving up pristine water without demanding much in return. 🙌

Maintenance is also simple thanks to the system’s self-cleaning features. The UV light zaps the stored water to prevent microbe formation, and the “rinse” setting flushes the filters and drains the system. Although occasional cleaning of the exterior is necessary, the system doesn’t require regular dismantling for cleaning.

The wastewater tank should also be emptied occasionally, depending on your water usage. Although the reject water isn’t suitable for drinking, it can be used for other purposes such as cleaning or watering plants.

Generally speaking, the RKIN U1 is a low-maintenance and convenient solution for countertop reverse osmosis filtration. For further installation instructions, refer to the installation manual available here: RKIN U1 Manual

RKIN U1 Countertop Reverse Osmosis System Reviews

Ah, let’s talk about what people just like you are saying about the RKIN U1 Countertop Reverse Osmosis system. Because, let’s face it, customer reviews can make or break a product. 🌟

One ecstatic Amazon user gushed, “Love it! Favorite product I’ve purchased in a while. Somehow this machine makes water cold! No clue how, but it’s cold!!! Perfect for my office. Also dispenses hot water for tea. Filling and dumping the discard water is simple.” Wow, talk about hitting the jackpot! Cold and hot water from the same device? That’s what we call versatility. And get this: the user finds it perfect for the office. Convenient, right?

Another user, this time from across the pond in the UK, had to jump through an extra hoop—buying a transformer—because, well, British outlets. Yet, even with that, they said, “I totally love it. It does everything I need. Love best investment I made. Even my plants, I’ll give filler water it blossom.” So even their plants are flourishing with water from the RKIN U1! 🌱

So what’s the takeaway here? If you’re on the fence about the RKIN U1, listen to the people who’ve been there, done that. From making tea to nourishing plants, this system seems to be making quite the splash.

RKIN U1 Countertop Reverse Osmosis Alternatives

Best Overall
Waterdrop G3P800 RO System

A great alternative is the Waterdrop G3P800 Reverse Osmosis system.

This is one of the best Reverse Osmosis systems in the market, as this tankless NSF-certified system removes up to 99.9% of the water contaminants, comes packed with several smart features like a TDS meter or a filter life indicator in-built on a designer faucet, has one of the best waste water ratio performances of 3:1, and it's easy to install.

Buy On Waterdrop Buy on Amazon
We earn a commission if you make a purchase, at no additional cost to you.
Frizzlife PD600-TAM3 Alkaline Remineralization RO System

A great alternative is the Frizzlife PD600-TAM3 Reverse Osmosis system.

This Reverse Osmosis can reduce 99.9% of the contaminants in the water, and includes a remineralization filter that adds back beneficial minerals which raise the water pH to more than 7.5 making it more alkaline and improving its taste.

This system has an amazing performance as its waste water ratio is one of the best in the market at 1.5:1.

Buy on Frizzlife Buy on Amazon
We earn a commission if you make a purchase, at no additional cost to you.
Best for Well Water
iSpring RCC7AK-UV 75 GPD 7-Stage with Alkaline UV RO System

If you need to deal with well water the iSpring RCC7AK-UV Reverse Osmosis system might be the solution for you.

This NSF-certified RO system removes 99.9% of water contaminants through 7 stages of filtration, which the last one is composed of a UV filter that inactivates viruses and bacteria that are commonly found in well water.

Buy on Amazon
We earn a commission if you make a purchase, at no additional cost to you.

Our Verdict

Alright, you’ve stuck with me through the nitty-gritty details, so let’s get to the point: Should you buy the RKIN U1 Countertop Reverse Osmosis System? In a word, yes. This system checks all the boxes. From its high-quality filtration capabilities to its sleek design and user-friendly features, the RKIN U1 offers value for every penny spent. Plus, it’s got the seal of approval from everyday users who’ve put it to the test. 🙌

But don’t just take my word for it. In our meticulously researched article on “The 10 Best Reverse Osmosis Systems“, the RKIN U1 takes the crown for the “best countertop” choice. And believe me, that title wasn’t thrown around lightly; it earned its spot fair and square. If you’re looking for a countertop reverse osmosis system that delivers on all fronts, your search ends here.

So there you have it, folks. Ready to make the plunge into the world of crystal clear, delicious water?