10 Best Drinking Water Filters 2025 in the United States

The ZeroWater 5-Stage Replacement Filters are designed for those who want very thorough water filtration. Their 5-stage ion exchange process is excellent at removing nearly all dissolved solids, including metals like lead, chromium, and mercury, as well as harmful chemicals like PFOA and PFOS. This makes the water taste very pure and is ideal if you're concerned about heavy metals and other tough contaminants in your water. These filters are IAPMO certified, which adds credibility to their contaminant removal claims. Each filter lasts about 15 gallons, roughly a 6-month supply if your water isn't overly contaminated, and the kit comes with six filters, so you have a supply for a few years. The lifespan can vary depending on your water quality, and you can check when to change filters using a TDS meter.

The flow rate and installation process are pretty straightforward, fitting all ZeroWater pitchers easily and requiring simple replacement without tools. The design is compact and BPA-free, making it safe and convenient. One downside is the relatively short filter life compared to some other brands, so if you use a lot of water daily, replacements might add up. Also, these filters are compatible only with ZeroWater systems, so they’re not universal. For those seeking very pure water and willing to swap filters regularly, these filters provide strong filtration performance and help reduce plastic bottle waste effectively.

The ZeroWater Official 5-Stage Water Filter Replacement Pack is a solid choice for those seeking clean and great-tasting drinking water. It features a 5-stage filtration method that effectively reduces contaminants like lead, heavy metals, and PFOA/PFOS, making it ideal for households that prioritize water purity. The filters have an estimated lifespan of about 15 gallons, though this can vary depending on the quality of your water. Users are encouraged to monitor the Total Dissolved Solids (TDS) levels with a meter for optimal performance.

One of the standout benefits is the significant reduction in single-use plastic waste, as each filter can save up to 110 plastic bottles, appealing to environmentally-conscious consumers. Additionally, the filters are BPA-free and certified by IAPMO, ensuring safety while using the product.

There are a few points to consider. The relatively short filter lifespan means you’ll need to purchase replacements more often than with some other brands, which can add to the cost over time. The flow rate can sometimes feel slower compared to other filters, which might be a drawback for those who require quick access to filtered water. Also, keep in mind that these filters are only compatible with specific ZeroWater systems, limiting their versatility. If you're looking for a water filter that delivers on taste and safety while being eco-friendly, the ZeroWater filter replacement pack could be a great fit for your home. Just be prepared for regular replacements to maintain optimal water quality.

The Brita Metro Water Filter Pitcher is designed for users looking for a convenient and efficient way to improve their tap water quality. The filtration method employed by Brita is effective in removing impurities such as chlorine, copper, cadmium, and mercury, which can improve both the taste and safety of the water. One of the key strengths of this product is its sustainability aspect, as it can replace up to 1,800 single-use plastic water bottles annually, making it environmentally friendly.

The pitcher comes with a SmartLight filter change indicator, which is a user-friendly feature that ensures you know when it's time to replace the filter, maintaining optimal filtration performance. The filter lifespan is approximately two months for the Standard filter and up to six months for the Elite filter, giving users some flexibility in their replacement schedule. The 6-cup capacity is suitable for smaller households or individuals, and its compact size makes it easy to store in most refrigerators. Installation and maintenance are straightforward with an easy-fill locking lid that prevents spills and simplifies the refilling process.

However, the 6-cup capacity might be a limitation for larger families or those who consume a lot of water daily, as it will require more frequent refills. Additionally, while the pitcher is effective in removing several key contaminants, it may not cover all possible impurities, so users with specific water quality concerns should check compatibility.