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8 Best Gravity Water Filters According to Experts

Are you tired of lugging around heavy water bottles or concerned about the quality of your tap water? Gravity water filters might just be your new best friend. 

These nifty devices are perfect for ensuring you have clean, safe drinking water whether you’re at home, camping, or facing an emergency. 

In this guide, we’ll dive deep into the world of gravity water filters, helping you navigate through the top picks for 2024 and understand what makes them the best choice for different needs.

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Why Use a Gravity Water Filter?

Gravity water filters are a game-changer for anyone looking to improve their water quality with minimal hassle. Here’s why they’re worth considering:

Portability and Ease of Use: 

One of the biggest advantages of gravity water filters is their portability. Most models are lightweight and easy to transport, making them ideal for camping trips, road adventures, or emergency situations. 

Plus, they don’t require electricity, which means you can use them anywhere, anytime.

Effective Contaminant Removal: 

Gravity filters are designed to remove a wide range of contaminants, including bacteria, viruses, heavy metals, and chemicals. This makes them an excellent choice for areas with questionable water quality. 

For instance, the Big Berkey Water Filter can remove over 200 contaminants, including pesticides, pharmaceutical waste, and heavy metals.

Cost-Effective: 

While the upfront cost of a gravity water filter might seem high, they are actually quite economical in the long run. The filters usually last for several thousand gallons of water, which significantly reduces the need for frequent replacements. 

For example, the Alexapure Pro filter lasts for around 5,000 gallons, offering a great return on investment.

Emergency Preparedness: 

In case of natural disasters or emergencies, having a gravity water filter can be a lifesaver. They can purify water from almost any source, ensuring you have access to safe drinking water when you need it the most.

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What to Look for in a Gravity Water Filter

Choosing the right gravity water filter can be a bit overwhelming given the plethora of options available. Here are some key factors to consider:

Filter Lifespan: 

The lifespan of the filter is crucial. Filters with longer lifespans mean less frequent replacements and lower maintenance costs. 

For example, the Waterdrop King Tank Gravity Water Filter has filters that last up to 6,000 gallons, reducing the hassle of frequent changes.

Capacity: 

Depending on your needs, the capacity of the filter system is an important consideration. Larger families or those who consume a lot of water should opt for higher capacity models. 

The Zen Water Systems 4-Gallon Water Filter, for instance, can hold up to 4 gallons, making it suitable for larger households.

Material and Durability: 

Gravity filters are available in various materials, from stainless steel to BPA-free plastic. Stainless steel models, like the Big Berkey, are generally more durable and long-lasting, but plastic models can be more lightweight and portable.

Certification and Testing: 

Look for filters that have been tested and certified by independent laboratories. NSF certification is a good indicator of a filter’s effectiveness in removing contaminants. 

The Waterdrop King Tank, for instance, boasts NSF certification, ensuring it meets high standards of water purification.

Additional Features: 

Some gravity water filters come with additional features like fluoride filters, water level indicators, or even the ability to alkalinize water. These can add extra value depending on your specific needs. 

The Zen Water Vitality Gravity Water Filter, for example, not only filters but also mineralizes and alkalinizes the water.

By considering these factors, you can find a gravity water filter that best suits your needs and ensures you always have access to clean, safe drinking water.

Our Top Picks for 2024

Finding the best gravity water filter can be a daunting task, but we’ve done the heavy lifting for you. After extensive research and testing, we’ve narrowed down the top picks for 2024.

Wits Engineer Picks: Waterdrop Gravity-fed King Tank Series

Waterdrop Gravity Water Filters King Tank Series front view

The Waterdrop Gravity-fed Water Filter System is perfect for those who need a high-capacity and efficient water filtration solution. It offers the same high-quality filtration as other models but with upgraded features for a better experience.

With a capacity of 2.25 gallons, it’s suitable for families of four, both indoors and outdoors. Despite its larger size, the Waterdrop can filter up to 9,000 gallons of water with its three black carbon filters. This makes it a highly efficient and cost-effective solution for ensuring clean drinking water over a long period.

Its stainless steel construction ensures durability, while the metal spigot adds convenience. However, like other high-end models, it does not have a visible water level from the outside.

Offer Price: $139.99
Where to Buy: Available on Amazon

Best Overall: Big Berkey Water Filter

Big Berkey Water Filter

When it comes to gravity water filters, the Big Berkey Water Filter is often hailed as the gold standard, and for good reason. This robust system is made from high-quality stainless steel, ensuring durability and longevity. But what truly sets it apart is its exceptional contaminant removal capability.

The Big Berkey is equipped with two powerful carbon filters that can eliminate over 200 contaminants, including heavy metals, pesticides, and pharmaceutical residues. This makes it a reliable choice for households looking to ensure the highest quality of drinking water. 

The filters are made from high-grade coconut shells and a proprietary blend of five additional materials, enhancing their effectiveness.

Moreover, these filters have an impressive lifespan, with each capable of filtering up to 3,000 gallons of water. This means you won’t have to worry about frequent replacements, saving you time and money in the long run. 

The system itself holds 2.25 gallons of water, making it suitable for both small families and individuals.

However, it’s not without its downsides. The Big Berkey is one of the more expensive options on the market, and its stainless steel construction means you can’t see the water level from the outside. 

Despite these minor drawbacks, its superior performance and durability make it a worthwhile investment.

Price: $415.00
Where to Buy: Available on Amazon

Runner-Up: Waterdrop King Tank Gravity Water Filter System

Waterdrop King Tank Gravity Water Filter System

The Waterdrop King Tank Gravity Water Filter System is a fantastic runner-up, offering a blend of affordability and efficiency. This system is also made of stainless steel, ensuring robustness and durability. What sets the Waterdrop King Tank apart is its NSF certification, which guarantees that it meets strict standards for water purification.

One of the standout features of this system is its inclusion of fluoride filters. These additional filters can remove up to 97% of fluoride from your drinking water, which is particularly beneficial for those concerned about fluoride exposure. The main carbon filter removes heavy metals, sediment, rust, and chlorine, ensuring your water is not only safe but also tastes better.

Another convenient feature is the visible water-level measure, which allows you to see how much water is left in the system without having to open it. 

This, coupled with a nonslip stand, makes the Waterdrop King Tank very user-friendly. Its filters also have a long lifespan, lasting up to 6,000 gallons, making maintenance infrequent and cost-effective.

While it may not remove as many contaminants as the Big Berkey, the Waterdrop King Tank is a more budget-friendly option that still offers excellent water purification.

Price: $229.00
Where to Buy: Available on Amazon

Best Bang for the Buck: Phoenix Gravity-Fed 2.25 Gallon Stainless Steel Countertop Water Filter System

Phoenix Gravity-Fed 2.25 Gallon

For those looking for a portable yet effective solution, the Phoenix Gravity-Fed 2.25 Gallon Stainless Steel Countertop Water Filter System is an excellent choice. This system not only filters water but also retains essential minerals through a unique filtration process.

This process includes the use of high-quality coconut-shell-activated carbon and other proprietary ingredients, providing you with clean, healthy, and great-tasting water.

The Phoenix Gravity system uses a combination of activated carbon filters to remove contaminants such as chlorine, lead, and other harmful substances. Additionally, it preserves beneficial minerals in the water, which can improve your overall health and well-being.

One of the most appealing aspects of the Phoenix Gravity system is its convenience. It’s a portable model that requires no tools for assembly, and it offers a long-lasting filtration process. Each pair of filters can purify up to 20,000 liters of water, needing replacement only once every two years for a family of four.

However, it’s important to note that this system is made of 304-steel, making it highly resistant to rust and durable, but it does not come with published lab test results to back up some of its claims.

Despite this, the Phoenix Gravity system is a great option for those looking to improve their water quality without the hassle of frequent maintenance. Its portability and ability to retain essential minerals add extra value, making it more than just a basic water filter.

Offer Price: $249.00
Where to Buy: Available on Amazon

Other Noteworthy Models


GLACIER FRESH Gravity-fed Water Filter System

GLACIER FRESH Gravity-fed

The GLACIER FRESH Gravity-fed Water Filter System is perfect for those who need a large-capacity and reliable water filtration solution. It offers advanced filtration technology in a 2.25-gallon size, making it suitable for families of four, whether at home, camping, or traveling in an RV.

Despite its large capacity, the GLACIER FRESH system is highly efficient. With two black carbon filters, it can filter up to 6,000 gallons of water. This makes it a cost-effective and eco-friendly solution, potentially saving up to 45,000 plastic bottles over three years.

Its stainless steel construction ensures durability, and the included metallic spigot fits perfectly without any leaks. The natural coconut activated carbon filters significantly reduce fluoride, chlorine, heavy metals, sediment, rust, soil, and other impurities, while improving the water’s taste and odor.

The GLACIER FRESH system is easy to set up and does not require any electricity, making it ideal for use even during power outages or in remote locations. Simply install and enjoy clean drinking water at all times. Note that if the faucet is not fully compatible, some splashing may occur, but this does not affect the product’s performance.

Overall, the GLACIER FRESH Gravity-fed Water Filter System is an excellent choice for ensuring clean and safe drinking water, both indoors and outdoors.

Price: $89.99
Where to Buy: Available on Amazon

Alexapure Pro Stainless Steel Water Filtration System

Alexapure Pro

The Alexapure Pro is another excellent option for those seeking a high-quality gravity water filter. Similar to the Big Berkey and ProOne models, the Alexapure Pro features a stainless steel construction and uses a single carbon block filter encased in a hybrid ceramic shell. 

This combination effectively removes most contaminants, including fluoride and radioactive substances. One of the key benefits of the Alexapure Pro is its long filter life, capable of filtering up to 5,000 gallons of water. 

It’s also designed to be easy to set up and maintain, making it a user-friendly choice. However, the product does fall short in lead removal, with a reduction rate of only 96.4%, which may be a concern for some users. 

Additionally, it lacks a robust warranty policy, offering only a 30-day return on unopened products.

Offer Price: $258.00
Where to Buy: Available on Amazon

ProOne Big+ Gravity Countertop Water Dispenser

ProOne Big+ Gravity Countertop Water Dispenser

The ProOne Big+ is a solid countertop gravity water filter known for its ability to remove over 200 contaminants using a combination of carbon and ceramic filter media. It boasts a 1,000-gallon filter lifespan and a 3-gallon holding tank, striking a good balance between cost and quality. 

This model is NSF certified for standards 42, 53, and P231, ensuring its effectiveness in removing chlorine, bacteria, herbicides, and pesticides. It also features a stainless steel body and the option to add additional filters for extended lifespan and faster filtration rates. 

However, some users have reported issues with the durability of the model and the high cost of replacement filters.

Price: $229.95
Where to Buy: Available on Amazon

Travel Berkey Gravity Water Filter

Travel Berkey Gravity-Fed Water Filter

The Travel Berkey is perfect for those who need a compact and portable water filtration system. It offers the same high-quality filtration as the Big Berkey but in a smaller, more travel-friendly size. 

With a capacity of 1.5 gallons, it’s suitable for small families or individuals who are frequently on the move. Despite its smaller size, the Travel Berkey can filter up to 6,000 gallons of water with its two carbon filters. 

This makes it a highly efficient and cost-effective solution for ensuring clean drinking water during travels. 

Its stainless steel construction ensures durability, though it shares the same drawback as the Big Berkey in not having a visible water level from the outside.

Price: $405.00
Where to Buy: Available on Amazon

How We Tested and Selected the Best Gravity Water Filters

Selecting the best gravity water filters was no small task. We evaluated over 20 products, considering various factors such as contaminant removal, filter lifespan, water capacity, material, and cost. Here’s a breakdown of our criteria:

Testing Criteria

Contaminant Removal: 

The primary purpose of a gravity water filter is to remove harmful substances. We looked for filters that could handle a wide range of contaminants including bacteria, viruses, heavy metals, and chemicals. Effective contaminant removal ensures safer, cleaner water for you and your family.

Filter Lifespan: 

How often do you need to replace the filter? A longer filter lifespan means less maintenance and lower long-term costs. 

We assessed filters based on their durability and how frequently they require replacements, making sure you get a reliable water filter system.

Capacity and Size: 

Depending on your needs, the water capacity of the filter might be a crucial factor. We included options suitable for individuals, couples, and large families, ensuring everyone can find a suitable portable water filtration solution. Whether you need a camping water filter or an emergency water filter, capacity matters.

Material and Durability: 

We preferred filters made from high-quality, durable materials like stainless steel. Stainless steel housing not only enhances durability but also contributes to the filter’s overall effectiveness and longevity. 

A sturdy water filter system is essential for both everyday use and emergency situations.

Cost and Maintenance: 

Both upfront costs and ongoing maintenance expenses were considered to ensure you get the best value for your money. 

We balanced the price with the performance to recommend gravity water filters that are both cost-effective and efficient in their filtration rate.

Frequently Asked Questions (FAQs)

How do gravity water filters work?

Gravity water filters operate by using gravity to pull water through a filter medium, which removes contaminants and impurities. 

You simply fill the upper chamber with water, and gravity causes the water to pass through the filter and collect in the lower chamber as purified water.

What contaminants do they remove?

Gravity water filters are designed to remove a wide range of contaminants, including bacteria, viruses, heavy metals, chlorine, pesticides, and pharmaceutical residues. 

Some models, like the Big Berkey and Alexapure Pro, also offer the option to add fluoride filters for additional purification.

How often should I replace the filters?

The frequency of filter replacement depends on the model and the quality of the water being filtered. For example, the filters in the Big Berkey need to be replaced every 3,000 gallons, while the Alexapure Pro filters last up to 5,000 gallons. Always check the manufacturer’s guidelines for specific recommendations.

Can gravity water filters be used in emergencies?

Yes, gravity water filters are excellent for emergency situations as they do not require electricity and can purify water from various sources, including rivers and lakes. Their portability and ease of use make them ideal for emergency preparedness.

Conclusion

Choosing the right gravity water filter can make a significant difference in ensuring access to clean and safe drinking water. Whether you’re looking for the best overall performance, the most bang for your buck, or a reliable option for camping, there’s a gravity water filter out there to meet your needs. 

The Big Berkey Water Filter stands out for its superior contaminant removal and durability, while the Waterdrop King Tank offers a more budget-friendly yet efficient alternative. 

For those who need portability and versatility, the LifeStraw Flex Advanced Gravity Water Filter is an excellent choice.

Investing in a water filter system is a smart move for anyone concerned about water quality. With the information provided in this guide, you can make an informed decision and choose a filter that best suits your requirements. 

Here’s to safe, clean, and great-tasting water!

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Engr. Jamal
Engr. Jamal

Hi, I’m Engineer Hm Jamal, founder of Green Mark Engineering. With 13 years in the home improvement industry, I’m passionate about creating sustainable, high-quality solutions for homes. My focus is on making your home improvement experience smooth and successful. Whether it’s a renovation or a new project, I’m here to ensure it’s done right.

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