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 Waterdrop Gravity Water Filter offers a reliable solution for purifying water, particularly suitable for outdoor use or emergency situations. It is compatible with various Berkey systems and Waterdrop's own gravity-fed system. Strengths include its ability to remove impurities like sand, rust, and chlorine, improving the taste and odor of water due to its premium carbon block and fluoride filters. The product is compliant with NSF/ANSI 42 and 372 standards, ensuring safety and performance.

Each black carbon filter can handle up to 6,000 gallons, and fluoride filters up to 1,000 gallons, which is quite durable and efficient. Portability is decent with a modest weight of 3.1 pounds, and the dimensions are compact enough for easy transport. Users find it easy to install and replace the filters, although initial flushing might cause splashing if not properly connected to a faucet.

However, it does not reduce TDS levels, which might be a point of confusion for some users expecting a drop in TDS to indicate cleaner water. The use of food-grade, BPA-free, and lead-free materials for the filter housing offers peace of mind regarding health safety. Customer support is noted as being responsive and helpful, which is a plus. In summary, this product is a strong choice for those looking for portable and effective water filtration for outdoor activities or as a backup in emergencies.

The Purewell 3-Stage Gravity Water Filter System is a well-rounded option for anyone seeking a reliable countertop water filter. One of its major strengths is its advanced filtration technology; the 0.01-micron filter pore size ensures high filtering accuracy, removing 99.99% of tiny contaminants, including chlorine, rust, and heavy metals. The NSF/ANSI 42 and 372 certifications further validate its effectiveness and safety standards. The system also boasts a good flow rate of 4 gallons per hour, making it efficient for daily use without waiting too long for clean water.

The filter capacity is another strong point; each carbon filter can handle up to 3000 gallons of water, and the system includes two filters, extending its lifespan to around 6000 gallons of water. However, for optimal performance, the filters should be replaced every six months, depending on water quality. The 304 stainless steel construction offers durability and adds a sleek touch to your kitchen counter. The included non-slip stand and leak-proof spigot enhance user convenience.

Since it operates on gravity filtration, it doesn't require electricity, making it versatile enough for both indoor and outdoor use. However, you'll need to be cautious about overfilling the upper chamber to prevent leaks. A minor drawback is that the filter does not reduce Total Dissolved Solids (TDS), which might be a concern for some users. Despite this, its ease of use, portability, and long-lasting build make it a suitable choice for households looking to improve water quality without relying on electricity.