10 Best Gravity Filters 2025 in the United States

The Big Berkey Gravity-Fed Stainless Steel Countertop Water Filter System is a solid choice for those who want to ensure they have clean and great-tasting water at home or in the office. With a 2.25-gallon capacity, it can handle an ample amount of water, making it suitable for small to medium households. The filter uses authentic Black Berkey Elements, which are highly effective in removing over 250 contaminants without needing electricity or plumbing, which adds to its simplicity and convenience in use. Each pair of filters can last up to 6,000 gallons, providing economical filtration over time.

The maximum flow rate is relatively low at 0.03 gallons per minute, which means it takes some time to filter larger quantities of water. Portability might be a bit of a challenge due to the unit's size and the need to place it on a countertop, but its stainless-steel build ensures durability and longevity. Keep in mind this product is not available for shipping to California or Iowa, and it comes with a limited warranty. If you need a reliable, long-lasting water filtration system and don't mind waiting a bit for filtered water, the Big Berkey could be a great fit.

The Big Berkey Gravity-Fed Water Filter System is a solid choice for anyone wanting clean, great-tasting water at home or in the office without relying on electricity or plumbing. Its 2.25-gallon capacity is well suited for daily household use, providing enough filtered water for drinking, cooking, or making beverages. The two Black Berkey Elements are the core strength here, as they have been independently tested to reduce over 250 contaminants, offering a high level of purification. These filters are long-lasting, capable of treating up to 6,000 gallons before needing replacement, which makes the system economical in the long run.

The flow rate is decent for a gravity-fed filter, though it may be slower than electric filters because it relies on gravity to move water through. Portability is somewhat limited due to its size and stainless steel build, which makes it better suited for stationary use rather than frequent travel. However, the system is easy to use, with no complex installation required—just fill the top chamber and let gravity do the work. The deluxe 7-inch stainless steel spigot with a water-level viewer adds convenience by allowing you to check how much water remains without lifting the top.

Durability is strong, thanks to the stainless steel construction that resists rust and damage better than plastic alternatives. One minor downside is that the filter elements' lifespan can vary depending on water quality, so very dirty water might require more frequent replacements. Also, while the system is great for household use, it may be less practical for very large families or groups due to its moderate capacity. The Big Berkey is a dependable, easy-to-use gravity filter that delivers high-quality water with minimal fuss, ideal for anyone who wants a reliable countertop water purifier without extra installation complexity.

The Travel Berkey Gravity-Fed Water Filter is a solid choice for campers, RV enthusiasts, and anyone needing reliable clean water without electricity or complex setup. It uses two Black Berkey Elements that can filter over 200 contaminants commonly found in natural and tap water, helping ensure safer drinking water from lakes, rivers, or questionable tap sources. Its 1.5-gallon capacity fits well for 1 to 3 people daily, making it suitable for small groups or solo use. While the flow rate is relatively slow at about 0.05 gallons per minute, this is typical for gravity filters and a trade-off for thorough filtration.

The system is quite portable, weighing 4 pounds and standing 18 inches tall with a compact 7.5-inch diameter, allowing easy transport and setup in tents, RVs, or emergency kits. The stainless steel build adds good durability, and no power or batteries are required, which increases reliability in outdoor or off-grid conditions. Additionally, the filter elements last up to 6,000 gallons, which translates to low ongoing costs.

One downside is the flow speed; if you need quick water access for more people or larger groups, it might feel slow. Also, it’s not the largest capacity, so frequent refills are necessary for extended use. The unit does not ship to some states, which could be a limitation depending on where you live. This Berkey filter is highly effective for clean water on the go, especially when portability and long filter life are priorities, though its slower flow rate and moderate capacity mean it’s best suited for small groups or individual use rather than large families or high-volume needs.