As an outdoor enthusiast, you probably travel to the most remote areas and “live off of the land” as much as possible. We’ve taken the liberty to research dozens of the portable gravity water filter systems we could find. We found eight systems that are worthy of any outdoor enthusiasts’ attention.
Below are the top eight that we’ve listed in order of least positive ratings to most positive ratings. Keep in mind that they all have fantastic ratings, so don’t be deterred from a product just because it’s lower on the list. Here are our top eight picks.
Before you read the next gravity water filter reviews, let’s see our top three picks! Here are the three portable gravity water filter units that made it to the podium.
Reviewed Gravity Water Filters
8. Katadyn Gravity Camp 6-Liter
|Size:||10″ x 2″ x 6″|
|Capacity:||6 L/1.6 gal|
|Filter Life:||1,500 L/132 gal|
|Removes:||Bacteria, protozoan cysts, and sediment|
This gravity water filter uses Katadyn’s unique Ultra Flow FilterTM Element, which allows water to flow fast enough for you to take a shower (shower adapter is a separate purchase). If you can take a bath with this water filter, you know you can quickly and easily fill bladder bags and water bottles for the whole group. It features a 6 liter bag with water level indicator window. The quick-connect adaptor attaches directly to most hydration bladders
The Katadyn gravity water filter will keep you quenched and clean while you’re camping or backpacking. It has some pretty impressive features that make it a slight upgrade from a basic gravity water filtration system.
It’s a bit pricey compared to others, but who doesn’t mind spending a few extra bucks for something that works well? Keep in mind to use it as recommended by the manufacturer, as it is prone to clogging and malfunctions. Other than that, you are good to go hiking!
7. Berkey Countertop Light Gravity-Fed Water Purifier
|Size:||26.5″H x 9″ x 9″|
|Flow Rate:||44 L/min|
|Filter Life:||6,000 gal|
|Removes:||99.999% of viruses, baceria, protozoa, heavy metals, pharmaceutical drugs, etc.|
The Berkey Light gravity water filtration system is a great countertop solution for people who are camping out for an extended period. It’s lightweight and see-through, so you can tell when it needs you to refill it. The system uses a minimum of two Berkey filters, but it can use up to four.
Using extra filters increases the filter lives and the flow rate so you can keep the right amount of clean, fresh water at all times. The best part about this Berkey product is that it’s a water purifier, so it filters out up to 99.999% of viruses, bacteria, and protozoa.
Economical and long-lasting, a pair of Black Berkey Purification Elements lasts for up to 6,000 gallons before needing replacement. You can travel the world, prepare for emergencies, and take control of your family’s everyday drinking water with this countertop gravity water filter. An excellent camping trip companion, this unit does not require electricity, tools or plumbing.
6. LifeStraw Flex Advanced With Gravity Bag
|Size:||11″ x 3″ x 5.5″|
|Flow Rate:||0.13 GPM|
|Filter Life:||500 gallons (hollow fiber membrane)/26.4 gallons(replaceable carbon capsule)|
|Removes:||99.999% baceria, protozoa, micro plastics, heavy metals, parasites, etc.|
The filter features a double-filtration process. The first filter is a replaceable carbon filter that is great for removing bad tastes and odors. The second filter is a hollow fiber membrane filter that catches contaminants as small as .2 microns.
The microbiological filter lasts 500 gallons (more than 1.5 years of drinking water), while the replaceable carbon filter lasts 25 gallons (more than 3 months of drinking water). The best part about the Lifestraw filter is that it exceeds US EPA drinking water standards for bacteria and parasites. It also exceeds NSF 53 standard for reduction of lead and other heavy metals. These certifications let you know that it’s a safe gadget to use.
LifeStraw is a company we all know for producing great products such as some of the best filtered water bottles for travel and adventure on the market. The LifeStraw Flex is one of the best available because it’s such a high-quality product. It’s long-lasting, and it works well.
You can use the filter in three other ways besides the gravity bag: as a personal straw filter, as an in-line filter with most hydration packs, or simply attached to most disposable water bottles. As environmental impact goes, for every Life Straw product purchased, a school child in need receives safe drinking water for an entire school year.
5. Santevia Countertop Gravity
|Size:||13″ Ã— 10″ Ã— 13″|
|Capacity:||Upper tank 1.3 gals | Lower tank 2.6 gals|
|Filter Life:||Ceramic Filter 1 year, Fluoride Filter 4 months, Mineral stones two years|
|Removes:||Rust, sediments, bacteria, parasites, and microplastics, fluoride, chlorine, herbicides, pharmaceuticals, industrial chemicals, tri-halomethanes, heavy metals, organic chemicals, particulates, and more.|
The Santevia Gravity water system mimics the earth’s natural filtration process. The filtration system is a four-step process. It starts with a ceramic filter that catches impurities as small as .3 microns. The next step is a fluoride filter that removes chemicals and bad tastes. The third is a layer of mineral stones that add beneficial minerals back into the water. The last step is a magnetic aligner that energizes water molecules. One thing is for sure – the Santevia gravity water filtration system is unique.
The Santevia fluoride filter eliminates fluoride without leaving residual aluminum like many competing filters. Moreover, it restores tap water to a clean, great-tasting, mineralized and alkalized state, using the power of gravity alone no chemicals, artificial materials, water pressure or electricity.
In comparison to water ionizers, this gravity water filter uses Porous Maifan stones that help oxygenate the water, add dissolved minerals, like calcium and manganese, and restores alkalinity.
4. Katadyn TRK Drip Gravidyn
|Size:||18″ x 10″ x 10″|
|Flow Rate:||0.016 GPM|
|Filter Life:||6 months|
|Removes:||Bacteria, protozoa, organic and inorganic substances, unpleasant tastes, odors, chlorine, pesticides, THMs.|
The pore-size of Katadyn ceramic filters is 0.2 micron (0.0002 mm). Bacteria range in size from 0.2 to 5 micron and, like protozoa (1 to 15 micron), are efficiently filtered out. Ceramic filters can be mechanically regenerated and the filter capacity is measurable.
The Katadyn TRK Drip Gravidyn free-standing gravity filter features a 10 liter water container for large quantities of water. It’s ideal for the water supply for camps, cabins and homes without running water. This Gravidyn version comes with three combined ceramic and activated carbon filter elements.
If you’re the type of person that likes a minimalist approach to things, you’ll appreciate this Katadyn TRK gravity water filter. It’s basically a tall bucket with a few filters in it. However, just because it has a basic design doesn’t mean it’s not an excellent product. It features three ceramic filters that you can clean several times, so you don’t have to replace them frequently. It also has carbon filters for an extra layer of filtration.
The best part is that this is suitable for large groups since it can hold up to 10 liters of water. A large container and high-performing filters – the Katadyn TRK has everything you need for clean drinking water.
3. Miniwell Personal Gravity
|Capacity:||3 L / 0.8 gallons|
|Filter Life:||528 gal|
|Removes:||Impurities, sediment, etc.|
The package includes the Miniwell Portable Water Filter, the dirty water reservoir (3000ml), the clean water collapsible bottle (1000ml), a silicone hose and hose clip, and a tree strap (1meter). The Miniwell gravity water filter system is not a single user straw. It is a perfect solution for a group people’s filtration needs when they are on the go. It features a slidelock design reservoir with wide-mouth opening for fast, easy filling and a convenient carry handle.
The Miniwell gravity water filter is a little filter that can work in a variety of ways. You can use it with a bucket connector, bladder bags, a water reservoir, a plastic bottle, or a combination of these. The filter comes with all these items in a package except for a plastic bottle, but it has everything else you need like straps or clips.
The Miniwell filter features a high-quality hollow membrane filter. It filters out contaminants as small as .1 microns small. It’s small, lightweight, and perfect for taking on a backpacking trip. It is also a good choice for hiking, camping, canoeing, fishing, hunting, climbing, travel, out-door work, survival, emergency, military personnel, refugee and rescuer in earthquake or flood area, etc.
2. Travel Berkey Gravity-Fed
|Size:||7.5″ x 18″ x 18″|
|Flow Rate:||0.045 GPM|
|Filter Life:||6,000 gal|
|Removes:||Impurities, sediment, bacteria, protozoa, havy metals, pharmaceuticals, etc.|
Probably the best non-plastic countertop gravity filter, this Berkey unit features stainless steel make and finish. It is capable of filtering around 6,000 gallons of water before you need to replace the filters. It removes almost all harmful contaminants you can encounter on your camping trips or outdoor adventures.
The Travel Berkey Gravity-Fed Water Purifier is, hands-down, the best non-plastic countertop gravity filter on the market. The polished stainless steel will make it the center of attention at your camp, and the amazing filtration system will provide you with some of the cleanest water you’ve ever had. In fact, it removes the nastiest particles from water, including protozoa, viruses, pathogens, and much more.
The Travel Berkey comes with two OEM Berkey Purification elements, but you can use up to four at a time. Using more filters expands the filter lives and increases the flow rate. Overall, this is a very good option.
1. Platypus GravityWorks 4.0 Liter High-Capacity
|Size:||3.25″ x 9.5″|
|Flow Rate:||0.46 GPM|
|Filter Life:||396 gal|
|Removes:||Impurities, sediment, 99.9999% of bacteria and 99.9% of protozoa, including giardia, cryptosporidium, E. coli, salmonella, cholera, etc.|
No pumping required. The reservoir fills easily and hangs from a tree to deliver four liters of filtered water for cooking and washing in 2.5 minutes. The package includes 4-liter dirty water reservoir, 4-liter clean water reservoir, hollow-fiber microfilter, hoses, shutoff clamp, and storage sack. The system is convenient because it’s so easy to use. Hang a couple of bags, hook up a hose or two, and voila! You’re up and running.
Platypus GravityWorks – Best Rated Water Filter
As far as gravity filters are concerned, you can’t get easier than that. The style/design is also worth mentioning. Each bag is clearly displaying “dirty” and “clean” labels, so you’ll never get your bags mixed up. It’s a very modern-looking filtration system without being over the top and full of strange colors. We’d recommend the Platypus GravityWorks system to anyone in any situation.
The Platypus GravityWorks water filter system is at the top (technically the bottom) of the list due to functionality, convenience, and style. The GravityWorks can filter a high-volume of water in a quicker amount of time than any other systems on the list.
That’s more than three to four times the flow rate of most of the gravity water filtration systems we’ve listed. As it’s filtering water, you can rest assured that your water is clean and safe because the GravityWorks meets EPA and NSF standards.
As an outdoor enthusiast, you’ll scrutinize every aspect of a water filtration system. It means that finding a gravity water filter for your needs would probably take quite a while without our reviews above. We’ve taken the guesswork out of shopping for you by providing you with in-depth information about these eight amazing products.
While they are all top-of-the-line products, the Platypus GravityWorks 4.0 Liter High-Capacity Water Filter System outweighs them all. The fact that it’s a mid-range price makes it even better.
However, no matter which one you choose, you can relax because you’ll get good, clean drinking water while enjoying the outdoors.