Comparative Review: Boroux, Rorra, and Culligan Water Filters

Washington DC, United States Aug 1, 2026 ALN: I will admit that the popularity of those giant, stainless steel, gravity-fed water filters remained a mystery to me for some years—even as multi-gallon water filtration systems from brands like British Berkefeld and Berkey seemed to proliferate equally among lovers of doomsday prepping and holistic wellness retreats. These systems have garnered attention not just for their functionality but also for their aesthetic appeal and the lifestyle they represent.

I have been testing different breeds of water filters for more than a year, including reverse-osmosis filters and filtered water pitchers. But often, the big water filter tanks have seemed as much like status symbols as functional items. They're good-looking in an industrial stainless steel sort of way: an expression of a lifestyle and a stately point of pride. If you see a big gravity-fed filter, you know the person in question is serious about wellness, survival, or both. The allure of these systems is further amplified by the growing awareness of water quality issues, prompting consumers to seek out more reliable filtration options.

What changed my mind about these big stainless steel filters was microplastics. Recent studies have highlighted the alarming prevalence of microplastics in our water supply, raising concerns about their potential health impacts. Microplastics are tiny plastic particles that can enter the human body through drinking water, and research shows that bottled-water drinkers ingest tens of thousands of excess microplastic particles. This revelation has prompted wellness enthusiasts to look askance at water filters that are themselves made of plastic, leading to a surge in interest in more sustainable and efficient filtration solutions.

Best Stainless Steel Water Filter Systems

Most water filter pitchers are made of BPA-free plastic, which, while an improvement over traditional plastics, still poses risks associated with chemical leaching. As new research shows that bottled-water drinkers ingest tens of thousands of excess microplastic particles, wellness lovers have begun to look askance at water filters that are themselves made of plastic. A newer generation of gravity filters has leaned into this, removing all—or nearly all—points of contact with plastic. This shift reflects a broader trend in consumer behavior where individuals are increasingly prioritizing health and environmental concerns.

Since March, I have been putting these new-school stainless steel filter systems to the test. The Boroux Legacy Water Filter System ($419) is a handsome gravity-fed filter system from a former Berkey distributor whose livelihood was disrupted by Berkey's fight with federal regulators. This background gives Boroux a unique perspective on the market, allowing them to innovate while ensuring quality and reliability in their products.

At a much lower upfront cost, the Culligan MaxClear Gravity Water Filter System ($199) is the best-certified stainless steel gravity system I've tested, at the expense of very slow filtration and expensive filter replacements over time. The Rorra Countertop System ($549) is a newer-school, celebrity-endorsed filter from a trio of serial entrepreneurs, with smart features that include sensors for both filter and water levels. This blend of technology and design speaks to a modern consumer base that values both innovation and user-friendliness.

In testing each, I assessed ease of setup, plastic content, total chlorine reduction, and changes to dissolved solids or pH. I also pored over each filter's NSF/ANSI certifications and independent testing results. These certifications are crucial for consumers who want to ensure that their water filtration systems meet established safety and performance standards.

Update July 2026: I tested and added the Culligan MaxClear Gravity Water Filter system to my comparison, and named it the best-performing and best-certified water filter overall, while keeping Boroux's water filter system as my top pick for most people.

Benefits and Detriments of Gravity-Fed Water Filter Systems

Gravity-fed water filter systems gained their biggest prominence in the United States with a system called the Berkey—whose makers began in 1998 as a distributor for a much older filter system called the British Berkefeld. Amid regulatory troubles for Berkey's classic black filters, a newer generation of gravity-fed filters has risen to prominence. This evolution in the market reflects a growing consumer demand for transparency, performance, and sustainability in water filtration.

Multi-gallon filters like this are imposing beasts—as much statement pieces as water filters. They're big, holding a gallon or more. They live on your counter or your table, and take up significant space there. The size can be a double-edged sword; while they provide a substantial amount of water, their bulk can be cumbersome in smaller kitchens. However, because they are so large, they are difficult to fill and slow to filter. In my early testing, gravity-fed filters like the new Boroux and Rorra don't necessarily filter water any better out of the box than plastic pitchers that can fit in your fridge door, or in-line filters under your sink. And because they don't fit in your fridge, your water is room temp, which may not be ideal for all consumers.

But convenience is relative. The jugs on gravity-fed filter systems are big enough on an overnight refill to provide a day's worth of water for most families, for sipping and cooking and coffee. I find this can be easier than the constant cycle of filling and waiting that plagues smaller water pitchers, especially for large families, coffee lovers, or avid cooks. The ability to serve multiple needs—from drinking to cooking—without the hassle of frequent refills is a significant advantage.

Moreover, whereas most water pitchers require regular filter re-ups, the Boroux filters advertise that they need replacement only once a year. This long-lasting filter life can save users both time and money in the long run, making it a more attractive option for those who want to simplify their water filtration routine.

Perhaps more importantly, Rorra, Boroux, and Culligan have shed nearly all plastic from their devices, especially in areas that come in contact with filtered water. This design choice not only addresses consumer concerns about plastic contamination but also aligns with a growing trend toward sustainability in product design. Boroux in particular has taken the extra step of attaining certification for microplastic filtration. If microplastics are a big concern for you, the new generation of gravity-fed filters does quite a bit to alleviate these worries. This certification adds an extra layer of trust for consumers who are increasingly aware of the potential health risks associated with microplastics.

Best Countertop Water Filter Overall: Boroux Legacy

The Boroux Legacy Water Filter System is a handsome gravity-fed filter system that stands out for its design and functionality. Its sleek stainless steel construction not only enhances the aesthetic of any kitchen but also contributes to its durability and effectiveness in filtering water. The Boroux system's unique selling proposition lies in its combination of style, performance, and sustainability, making it an appealing choice for consumers who are conscious about both their health and the environment.

In conclusion, the comparative review of Boroux, Rorra, and Culligan water filters highlights the evolving landscape of water filtration systems. As consumers become more informed about the quality of their drinking water and the potential contaminants it may contain, the demand for efficient, reliable, and aesthetically pleasing water filters is likely to grow. The shift towards stainless steel, gravity-fed systems reflects a broader trend in consumer preferences, emphasizing the importance of health, sustainability, and performance in everyday products. Each of these brands brings something unique to the table, catering to different needs and preferences, and providing consumers with a range of options to choose from in their pursuit of cleaner, safer drinking water.