The 5 Best Gravity Fed Water Filters: Reviews, Pros, Cons, and More!

by Jay | Updated on March 28th, 2023

So you’ve decided that your current water filters aren’t cutting it. In all honesty, I can relate. I’ve been there too. I bet you feel like you’re drinking from a fire hose because your water is so chlorinated.

Do you know what is in your tap water? Is it safe to drink? All the research points to “no.” Bottled water may not be a sustainable solution for everyone and can be expensive.

mountain river

Fortunately, some gravity-fed water filters are an affordable, sustainable solution that will keep your family safe from the contaminants in your water.


Big BerkeyPropurplatypus
Capacity2.24 Gallons1.75 Gallons1.05 Gallons
Filter life6,000 gallons6 months 300-400 gallons1,500 gallons
MaterialStainless SteelStainless SteelPolyethylene
Product Dimensions8.5″L x 8.5″W x 19.25″H7.5″L x 7.5″W x 18.5″H13.2″L x 2.8″W x 5.8″H

Best gravity fed water filters

I researched the top 5 gravity-fed water filters to find out which one will best meet your needs.

1. Big Berkey countertop gravity water filter system

Check out the best-selling Big Berkey if you need a larger filter to sit on your countertop. This set includes two filter elements, each of which can handle up to 3,000 gallons of water.

In this case, the package also contains two additional fluoride elements. Each of these is attached to the stem of the black purification element and has a capacity of 1,000 gallons.

The system will eliminate parasites, cysts, and bacteria while lowering nitrates, nitrites, mercury, and lead levels. It will also target harmful chemicals such as pesticides, herbicides, and organic solvents.

The material used in this construction is polished 304 stainless steel. It’s stylish enough to be on display in your kitchen.

It has a diameter of 8.5 inches, which is still small in terms of its countertop footprint, and a height of 19.25 inches. So keep an eye out for wall cupboards or shelves when deciding where to place them. Because of its larger dimensions, it can hold 2.25 gallons.

The filtration rate is approximately 7 gallons per hour. Therefore, as with other gravity systems, it works best when the upper container is full.

You’ll also notice that it slows down as the filter gets older. Re-priming the filters with the rubber washers can help speed things up again.


  • Large 2.25-gallon capacity
  • The two main purification elements will each treat 6,000 gallons
  • Fluoride filters are included as standard.


  • For the best results, regular maintenance is required.
  • It must be used every day, or the filters will grow bacteria.

2. Propur traveler countertop gravity water filter system

Lead, microplastics, chlorine, and fluoride will all be removed by Propur’s water filter.

This is at the low end of the gravity water filter spectrum. It has a capacity of 1.6 gallons and is best suited for use by one person. It measures 18.5 inches tall and 7.5 inches in diameter to fit neatly, even in small kitchens. Its small size also makes it convenient to carry about.

It’s made of polished 304 stainless steel and is sophisticated enough to be displayed at home. It’s also tough enough to be used in the great outdoors. If you get caught in the rain, it won’t rust.

However, we’ve heard that the knob used to lift the lid is a design flaw. Don’t be tempted to overtighten it; you might snap it off.

The filters are intended to last six months or 300-400 gallons. The exact time will be determined by how contaminated your water source is. They work with tap water and rainwater, and water from lakes, streams, and rivers.

However, remember that this system is intended for everyday use. As with most gravity systems, if the filters dry out, they can become bacterial breeding grounds.

Although the filters, in this case, are infused with silver to help inhibit bacteria, we wouldn’t take any chances. So, if you haven’t used it in a while, thoroughly clean the system and replace the filters.


  • Small size is ideal for small spaces and camping.
  • Filters imbued with silver to impede bacteria growth
  • It can filter rainwater, tap water, and water from rivers and lakes


  • We’ve heard people complain about the fixture needing to be cleaned.
  • Be careful of the knob on the lid of the upper canister – it has been known to snap off.

3. The platypus gravity water filter system

The Platypus gravity water filter is intended for outdoor use. It holds dirty and filtered water in two clear, BPA-free bags. Each one holds slightly more than a gallon.

In addition to the bags, the kit includes:

  • a hollow fiber microfilter,
  • a shut-off valve,
  • hoses, and
  • a storage sack.

The entire package is lightweight, compact, and portable, making it an excellent choice for camping trips or emergencies.

Before needing to be replaced, the filter cartridge can treat up to 1,500 gallons. There are portable filters with longer lifespans available, but not all of them can be replaced. You simply replace the filter with this system, and you’re good to go.

The filter is also effective, removing almost all bacteria and protozoa. It has also been independently tested to ensure that it works.

A simple air purging and back-flushing system can be easily implemented in the field. The entire procedure takes only four seconds. Moreover, it enables you to keep the system clean and functional even in sterile environments.


  • Simple and quick to clean
  • Lightweight and portable
  • The filter and hoses can be changed.


  • It does not remove viruses;
  • The position of the outlets makes emptying the bags difficult.

4. Lifestraw flex advanced water filter

The LifeStraw Flex Advanced Water Filter with Gravity Bag is the most adaptable water filter on the market. With this product, you can use it in five distinct but beneficial ways. Because it comes with a soft bottle, you can use it as a straw, an in-line filter compatible with most hydration packs, a gravity system, or an attachment to a disposable container of your choice.

This becomes a staple filter system. You need safe and clean water wherever you go, making it so convenient because you can get that water anywhere. Aside from its portability, it also provides you with next-level protection and peace of mind no matter where you are.

It is capable of removing bacteria up to 99.99 percent of the time. Parasites such as E. coli, Giardia, and Salmonella are also eliminated, including heavy metals such as lead. Whether you’re going camping or to a far-flung international location makes no difference. This system always gets the job done. In addition, it exceeded the US EPA drinking standards and the NSF 53 standard, giving you extra peace of mind.

If you are gone for a while, don’t worry because LifeStraw Flex’s microbial filter can clean 500 gallons of water. It lasts more than a year, and the replaceable carbon filter can process 25 gallons of water, roughly three months of consumption.


  • Five different ways to use
  • Up to 500 gallons of filtered water before replacing the microbiological filter
  • Very portable
  • Water with a cause
  • Up to 25 gallons of filtered water before replacing the carbon filter


  • It doesn’t have a place to hang

5. Santevia water systems countertop system

You will be at ease when you have a Santevia Systems countertop filtration and purification system. It primarily performs the following functions for you: purifying, filtering, alkalizing, mineralizing, and magnetizing. By the end of the process, you’ll realize that safer, healthier, and better-tasting water is a reality when you’re drinking that water.

The best countertop gravity water filter system eliminates bacteria, odor, and harmful contaminants in tap water. It takes advantage of the pH level that is slightly alkaline and naturally releases essential minerals.

Because Zen Water is about enhancing natural processes, increasing gravity can transform tap water into spring-like mineral water. The water filtration materials, such as main mineral stones and magnetic fixtures, are also all-natural. In the entire process, no synthetic substances or chemicals are used.

Because the filter chamber is transparent, you can look inside to assuage your curiosity. A filter can also fully purify 500 gallons of water before needing to be replaced. Assembly and maintenance are also simplified by their user-friendly and convenient design.


  • All-natural system free of chemicals or synthetic substances
  • 5 stages mineral filter
  • Up to 500 gallons of filtered water before filter replacement
  • Low cost
  • Easy assembly and maintenance


  • The use of plastic in construction.

NOTE: You have to boil the stones and rinse filters before assembling

What is a gravity-fed water filter?

Do you live in a rural area where there isn’t a consistent supply of water? Or is the water provided unsafe for you and your family? Or do you enjoy camping or traveling to places with no clean water and struggling to obtain fresh and pure water for your consumption?

Then don’t worry because we have the solution to your problems: gravity-fed water filters. The gravity-fed water filter is a filter that can be used to filter water from anywhere, even the most remote locations. In addition, it’s portable, so you can take it with you when you’re on the go.

What is the function of a gravity filter?

Activated carbon is used in gravity-based water purifiers. How so? When water is purified and filtered, the activated carbon absorbs impurities in the unclean water. The other benefits become apparent when considering the ease of use and natural purification.

You have environmental advantages. Because there is no need for electricity, you can use hollow fibers with the filter. Why is this so? Essentially, the water passes through hollow fibers and picks up impurities before filtering.

As a result, gravity water will have an upper attachment for storing water, a lower attachment or storage area for storing purified water, and a mediator with filter elements in between for processing.

As a result, gravity will eventually push things in the water through. As a result, water will flow from the upper attachment to the lower attachment, moving through the filter elements. These filter elements trap impurities with millions of microscopic pores, allowing only water molecules to pass through. In a gravity filter, this is how water is purified.

A buyer’s guide to choosing the best gravity-fed water filter

As is customary, before you embark on your quest for a high-quality water filter, you should know what to look for. When purchasing a water filter—in this case, a gravity-fed water filter—there are a few things to keep in mind and keep an eye out for.

  • Construction material – make sure the filter you buy is made of stainless steel. Because it is rust-resistant, light, portable, and easy to clean, stainless steel is the best material for a water filter. Also, if you intend to travel frequently with a water filter, a stainless steel one is ideal because the material is resistant to wear and tear. We’ve all heard that traveling causes wear and tear on your belongings, which you don’t want.
  • What needs to be filtered – the filtration level should be considered when purchasing a filter. To avoid getting sick and ensure that only pure, fresh, and healthy water is consumed, you must filter out all substances that may be harmful to your health. A filter capable of filtering dirt particles, pesticides, heavy metals, parasites, and other contaminants should be considered. This is due to the poor quality of the water you are receiving. If you are traveling or visiting a new location, this filter is ideal because you are not fully aware of the water’s substances. Consider a gravity-fed water filter with ceramic filter media and activated carbon for the best results.
  • Filter replacement – Like any other water filter, the filters installed in a gravity-fed water filter will need to be changed. The good news is that, unlike other types of water filters, replacing a gravity-fed water filter is simple and easy to do on your own. It would be best to consider how frequently the filters need to be changed. Some water filter systems have filters that last up to a year. To avoid many problems, you should consider a gravity-fed water filter with self-sterilizing cartridges containing traces of silver. This is because they are effective at preventing bacteria’s growth on the filters’ elements.
  • Amount of water required – To be on the safe side, don’t forget to factor in the amount of water that needs to be filtered. Consider your current water consumption to make this process easier. If you’re unsure how much water you’ll need, especially when traveling, it’s best to get a larger-sized filter. If you want a filter for your home, the number of people in the house will determine the best filter size.

The benefits and drawbacks of using a gravity water filter

Like all water filtration systems, the gravity water filter offers numerous advantages and disadvantages to the average buyer. If you’re considering getting one, you should weigh the pros and cons to see if it’s right for you and your needs.

All of these will be listed in this section.


Like all water filtration systems, the gravity water filter includes a filter medium responsible for the filtration process.

Regardless of the type, the filter contains a plethora of microscopic pores that serve as a barrier. As a result, no contaminant, particle, sediment, or other impurities larger than the pore can pass through. This will provide you with clean water.

Enhance the taste and smell of your water

In addition to bacteria and pollutants, the gravity water filter will remove chemicals and sediments from your water. Your water supply will smell and taste better once these are gone.


Gravity water filters allow clean water by simply using your tap water supply. You would no longer need to rely on bottled water with this. In addition, it reduces plastic pollution, which benefits the environment.

Reduce your spending

Gravity water filters can also aid you in saving money on household expenses. With this on hand, you can cut back onreduceter and use reliable, durable, reusable water bottles.

Furthermore, these filters do not require any electricity to function. As a result, you can save money on electricity.

Excellent for emergencies

Gravity water filters are also useful in emergencies or when there is a limited water supply. You can have a constant supply of clean drinking water because it does not require electricity.


Filtration constraints

No single filter medium can handle all pollutants, contaminants, particles, and other impurities. The same is true for your gravity water filter.

If the model allows it, you should buy a filter medium made of a mix of materials. This allows it to deal with a broader range of contaminants and impurities.

Slow water output

The amount of water that a gravity water filter can filter is also limited. It can only sift about 10 cups per day, depending on its size.

Long filtering period

Like all water filtration systems, Gravity water filters require some time to filter. Some users may find it inconvenient because they must refill it regularly.

In conclusion

Finally, gravity-fed water filters are ideal for outdoor activities such as camping or traveling to rural areas where clean water is not assured. The good news is that they can also be used at home or the office.

Our top three picks show that most of them are made of stainless steel, making your cleaning work easier and more portable due to their lightweight.

The Big Berkey, on the other hand, is your best bet for better service. Dig a little deeper into your pocket, and you’re set. If you find it difficult to fill these filters daily, consider using a reverse osmosis water filter instead.


Jay is a health and wellness enthusiast with expertise in water quality and nutrition. As a knowledgeable advocate for holistic well-being, Jay successfully manages Type 2 Diabetes through informed lifestyle choices. Committed to sharing reliable and authoritative insights, Jay combines firsthand experience with a passion for enhancing health."