Explore Reinmoson RMS-WP-RO500 Tankless Reverse Osmosis System Review: Does It Deliver Pure Water?

Description

Ease of Installation & Use

Sliding this under my kitchen sink was smoother than I imagined. The Reinmoson RMS-WP-RO500 comes with pre-labeled, color-coded tubing that made me feel like I was assembling a LEGO set, not a reverse osmosis system. I managed it solo in under 30 minutes, and that’s saying a lot because I’m not exactly handy. It even comes with adapters for different plumbing setups, which saved me a last-minute run to the hardware store. My favorite part? No tools were needed beyond a basic cutter for the tubing. Even my skeptical roommate admitted this setup was idiot-proof.

Filtration Technology & Effectiveness

This 8-stage filtration system is no joke. It’s got reverse osmosis, activated carbon, and other high-tech stages working together to strip out over 1,000 contaminants. I tested the water with a TDS meter, and the results were impressive. The TDS levels dropped from around 500 ppm to a mere 15 ppm. It’s like turning tap water into something bottled-water companies would envy. Chlorine taste? Gone. Weird odors? Vanished. Even my picky cousin, who complains about everything, couldn’t find a flaw in the water quality.

Features

This tankless system comes with a built-in TDS meter and a filter life indicator, both displayed on the LED screen. The TDS meter was an eye-opener for me, showing real-time water purity levels. I’ve never owned a system where I didn’t have to guess when to replace the filters. With this one, the LED screen gives you a heads-up, and replacing the filters takes seconds—literally. The compact size is another standout feature. It’s smaller than a microwave, saving precious space under the sink.

Filter Lifespan & Replacement

Speaking of filters, they’re designed to last between 1,100 to 2,200 gallons, which is significantly more than what other systems offer. I’ve been using it for a couple of months now, and the filters still show plenty of life left on the indicator. Replacing them is as simple as twisting them out and popping in a new one. No spills, no tools, and no cursing involved—my kind of maintenance routine.

Flow Rate & Performance

The flow rate is stellar. It fills a 200ml glass in about 8 seconds, which is perfect for impatient folks like me who can’t stand waiting for water to trickle out. With a 2.5:1 pure-to-drain water ratio, it’s also more efficient than many other systems I’ve researched. My old system wasted more water than it produced. With this one, I’m saving both water and my utility bills.

Certifications

This reverse osmosis system isn’t just all talk—it’s NSF/ANSI 58 & 42 certified, which means it’s been rigorously tested to remove heavy metals, PFOS, and other contaminants. It even meets EPA 200 standards. Knowing this gives me peace of mind, especially since I have a toddler who drinks more water than anyone in the house.

Capacity & Suitability

With its 500 GPD capacity, this system can handle the water needs of a family of four without breaking a sweat. I use it for drinking, cooking, and even making coffee. My coffee tastes noticeably better, by the way. If you’re in an apartment or a small household, this system is a perfect fit. Even in larger homes, it holds its own thanks to its efficient flow rate.

Warranty

The warranty is another plus, offering five years of coverage. That’s longer than most competitors, which usually max out at one or two years. It’s a solid reassurance that the manufacturer stands behind their product. I haven’t had to use the warranty, but knowing it’s there feels good.

Advantages

• Compact and tankless design saves space and eliminates secondary contamination risks.
• 8-stage filtration effectively reduces over 1,000 contaminants, including heavy metals and fluoride.
• User-friendly features like real-time TDS meter and filter life indicator.
• Efficient 2.5:1 pure-to-drain water ratio saves water and reduces utility bills.

Areas for Improvement

• The included faucet is chrome, which might not match all kitchen aesthetics. I had to stick with my existing brushed bronze faucet to keep my wife happy.
• Some users might find the lack of a detailed installation manual a bit frustrating. The online guide made up for it, though.
• It’s corded electric, so you’ll need an accessible power outlet under your sink.

Peer Products

Compared to similar systems like the APEC Water Systems ROES-PH75, this one wins in terms of space efficiency and filter lifespan. The APEC model has a bulky tank that hogs cabinet space, whereas this tankless design is sleek and modern. On the flip side, the APEC unit offers a remineralization stage, which adds back healthy minerals, something this system lacks. If you’re looking for pure, minimalist water filtration, the RMS-WP-RO500 edges out the competition.

Bang for the Buck

This system provides excellent value for its price point. The efficient filtration, long-lasting filters, and reduced water waste make it a cost-effective alternative to bottled water and less efficient reverse osmosis systems. While the upfront cost might seem steep, the savings on filter replacements and water bills balance it out over time. It’s a smart investment for anyone serious about clean drinking water.

Additional information