--- title: "The Best Gravity Water Filters, Tested" description: "We tested 7 gravity water filters for 6 weeks. The Waterdrop King Tank filtered fastest at 4 gallons per hour with great-tasting water." date: "2025-10-28" modified: "2025-10-28" authors: - name: "Michelle Larson" job_title: "Assistant Editor" link: "https://www.bobvila.com/authors/michelle-larson/" - name: "Jenn Ryan" job_title: "Contributing Writer" link: "https://www.bobvila.com/authors/jenn-ryan/" url: "https://www.bobvila.com/reviews/best-gravity-water-filters-2025/" categories: - "Everyday Essentials" - "Reviews" tags: - "Commerce" - "MPR" --- # The Best Gravity Water Filters, Tested ![Gravity water filters group]() *Photo: Michelle Larson for BobVila.com* Gravity water filters are standalone water purification systems that use gravity to produce clean, great-tasting water. You simply pour water into the top tank and allow it to flow through a set of filters that remove sediments, chlorine, bacteria, and other contaminants before collecting in the chamber below. As [everyday essentials](), these systems are great for providing safe drinking water at home, in the office, and outdoors. To help you find the right water filter machine​ for your needs, we researched more than 20 units and tested seven. Based on our results, we chose the [Waterdrop King Tank Gravity Water Filter System]() as our top pick for its fast filtration, high-quality filtered drinking water, and overall value. Ahead, discover more about why the Waterdrop is the best gravity water filter and which other models we also love. ## Gravity Water Filters Comparison | **Product** | **Drinking water capacity** | **Filters** | **Max filtration rate** | | --- | --- | --- | --- | | [Waterdrop King Tank Gravity Water Filter System]() | 2.25 gallons | 2 activated carbon filters, 2 fluoride filters | About 4 gallons per hour (GPH) | | [Boroux Legacy Gravity Water Filter System]() | 3 gallons | 2 activated carbon filters, 2 fluoride filters | About 2 GPH | | [Zen Water Vitality Gravity Water Filter]() | 2.5 gallons | 1 ceramic filter, 1 multi-layered mineral filter | About 1 GPH | | [Santevia Gravity Water System]() | 2.6 gallons | 1 ceramic filter, 1 multi-layered mineral filter | About 1 GPH | | [Platypus GravityWorks Water Filter System]() | 6 liters | 1 hollow fiber membrane filter | About 1.75 liters per minute | | [Purewell 7-Stage Alkaline Gravity Water Filter System]() | 2.25 gallons | 2 carbon composite filters, 2 multi-layer mineralization filters | 2 GPH | | [Big Berkey Water Filter]() | 2.25 gallons | 2 carbon composite filters | 3.5 GPH | #### Our Ratings | **Setup** | **4.5/5** | **Functionality** | **4.8/5** | **Water quality** | **4.8/5** | **Value** | **4.8/5** | | --- | --- | --- | --- | --- | --- | --- | --- | The Waterdrop King Tank gravity water filtration system earned our top award for its durable 304 stainless steel construction, National Sanitation Foundation (NSF) certification, and reasonable price. It comes with two advanced coconut-activated carbon filters that reduce chlorine, heavy metals, sediment, and other impurities, as well as two fluoride filters that eliminate up to 93 percent of fluoride. With a 2.25-gallon capacity and an included stand, this [countertop water filter]() is also easy to fill and dispense. In testing, one of the aspects we appreciated most about this stainless steel water purifier was its fast filtration of up to 4 gallons per hour. This [type of water filter]() is notoriously slow, but at a rate about two times that of most other models we tested, we never found ourselves waiting for fresh water. In fact, the only unit that filtered more quickly was the Platypus gravity bag water filter, which is a backpacking water filter. We also really appreciated the stand, which elevates the countertop gravity water filter so a glass or bottle fits underneath. **What our tester says:** “In addition to producing great-tasting water, I really love how quickly this model works and how much it holds. Our family drinks a lot of water, and with one fill in the morning and another in the afternoon, we always have plenty on hand when we need it.”—Michelle Larson, Product Reviews tester and writer **Get the Waterdrop King gravity water filter at** [**Amazon**]()**,** [**Walmart**]()**, or** [**Waterdrop**]() **(no stand).** ![Boroux Legacy gravity water filter before assembly]() *Photo: Michelle Larson for BobVila.com* ## More Gravity Water Filters Worth Your Money The best [water filter system for your house]() might be larger, smaller, or more portable than the Waterdrop King. Each ceramic gravity water filter, stainless steel water filter, and gravity water filter backpacking unit also passed our tests with flying colors. ![Boroux Legacy filters]() *Photo: Michelle Larson for BobVila.com* ## How We Tested the Best Gravity Water Filters | Products tested | 7 | | --- | --- | | Time spent testing | 6 weeks | | Tests performed | 6 | | Price range | $150 to $600 | To find the best gravity water filters, we looked at more than 20 products, considering material construction, ease of use, filter life, filtration ability, and price. We then spent a week testing each model, evaluating them on setup, durability, filtration rate, and water quality and taste. After factoring in the usefulness of additional features like stands, water level indicators, and extra filters for removing fluoride or increasing alkalinity, we scored them using a rubric and assigned the top performer the award of best overall. | **Product** | **Setup** | **Functionality** | **Water quality** | | **Value** | | --- | --- | --- | --- | --- | --- | | [Waterdrop King Tank Gravity Water Filter System]() | 4.5/5 | 4.8/5 | 4.8/5 | | 4.8/5 | | [Boroux Legacy Gravity Water Filter System]() | 4.5/5 | 4.8/5 | 4.8/5 | | 4.2/5 | | [Zen Water Vitality Gravity Water Filter]() | 4/5 | 4.3/5 | 4.8/5 | | 4.5/5 | | [Santevia Gravity Water System]() | 4/5 | 4/5 | 4.8/5 | | 4.5/5 | | [Platypus GravityWorks Water Filter System]() | 4/5 | 4/5 | 3.8/5 | | 4.3/5 | | [Purewell 7-Stage Alkaline Gravity Water Filter System]() | 3.5/5 | 4/5 | 5/5 | | 4.5/5 | | [Big Berkey Water Filter]() | 4/5 | 4/5 | 4/5 | | 3.5/5 | ![Waterdrop King Tank gravity water filter in use]() *Photo: Michelle Larson for BobVila.com* ## FAQs Considering a gravity water filter for your home? You likely still have some questions about how the [best water filters]() work and what kind of maintenance they require. Read on for answers to these and other frequently asked questions. ## Meet the Tester Michelle Larson has more than a decade of experience writing and editing about home, health, and lifestyle topics. She takes a practical, research-driven approach to product testing, focusing on real-world performance, ease of use, and long-term value to help readers choose essentials like water filters. *Additional research provided by Jenn Ryan.* ## Author Michelle is a lifelong learner who lives and plays in the mountains of Park City, Utah, with her husband, daughter, and pets. She came to the Commerce team at BobVila.com in February 2022 with more than 5 years’ experience as a business owner, writer, and program manager.