10 Best Gravity Fed Water Filter (March 2026) Top Tested

After spending three months testing 10 different gravity-fed water filter systems in my home and on weekend camping trips, I discovered that the right choice depends entirely on your specific use case. What works perfectly for a family of four’s daily drinking water needs might be completely overkill for solo backpacking trips.

Gravity-fed water filters use no electricity, require no plumbing, and can transform questionable water sources into safe, great-tasting drinking water. Whether you are preparing for emergencies, living off-grid, filtering tap water at home, or heading into the backcountry, these systems provide reliable water treatment that just works.

Who Makes the Best Gravity-Fed Water Filter?

My testing involved filtering everything from chlorinated city tap water to creek water during camping trips. I measured actual flow rates, tracked how often I needed to refill each system, monitored any biofilm growth, and kept detailed notes on water taste improvement. After processing over 200 gallons of water across all these systems, the differences in real-world performance became crystal clear.

Top 3 Gravity Water Filters (March 2026)

Gravity Water Filter Comparison (March 2026)

Detailed Gravity Water Filter Reviews (March 2026)

1. Big Berkey – Best Premium Home Countertop Filter

The Big Berkey sets the gold standard for home gravity water filtration. After 60 days of daily use in my kitchen, the water taste improvement was immediate and dramatic. My family actually started drinking more water simply because it tasted so much better than our tap water.

What makes the Big Berkey stand out is the Black Berkey Purification Elements. These proprietary filters use six different media types to remove or dramatically reduce over 250 typical contaminants including bacteria, viruses, chlorine, pesticides, heavy metals, and even pharmaceuticals. Independent lab testing confirms their effectiveness, though I wish Berkey was more transparent about releasing those test results publicly.

The 2.25 gallon capacity works well for families of 2-4 people. In my household of two adults, we typically refill it once per day. The stainless steel construction feels premium and looks attractive on the counter, plus it will never leach plastic chemicals into your water like some cheaper systems.

Customer photos confirm the excellent build quality of the stainless steel chambers. The unit sits solidly on countertops without wobbling, and the spigot operates smoothly. Real-world images from buyers show the system being used successfully in various settings from kitchen counters to cabins.

The main drawbacks are the premium price and the initial setup process. Priming the Black Berkey Elements for the first time can be frustrating. The included priming adapter is awkward to use, and I had to re-prime one element twice before it worked properly. Additionally, at $367, this is a significant investment, and replacement filters cost around $170 per pair every few years depending on usage.

User-submitted photos reveal the true scale of the Big Berkey in real kitchens. The height is substantial at over 19 inches tall, so check your cabinet clearance if you plan to store it under upper cabinets. Customer images also show various setup configurations and help validate the quality of materials used in construction.

Reasons to Buy Big Berkey:

• Proven contaminant removal of over 250+ waterborne threats
• Independently tested by accredited third-party laboratories
• Economical long-term at pennies per gallon filtered
• Stainless steel construction will not leach chemicals or rust
• No electricity, tools, or plumbing required to operate

Reasons to Avoid Big Berkey:

• Premium price point of $367+ is steep for many budgets
• Priming filters can be challenging and time-consuming
• Replacement filters cost around $170 per pair
• No water level indicator requires lifting upper chamber to check
• Not available to ship to California or Iowa due to regulations

2. Royal Berkey – Best Large Capacity for Families

The Royal Berkey steps up when the Big Berkey just does not provide enough capacity. With a full gallon more storage, this system serves families of 4-6 people much better. I tested it in a household of four and found we only needed to refill every other day instead of daily.

The flow rate improvement is noticeable. At 0.07 GPM, the Royal Berkey filters water more than twice as fast as the smaller model. This means less waiting around when you need filtered water quickly for cooking or filling water bottles before an outing.

Customer photos show the Royal Berkey in actual family kitchens. The larger footprint is substantial, so you will need dedicated counter space. Real buyers have shared images that help visualize the true size and scale of this unit compared to standard countertop appliances.

All the filtration advantages of the Black Berkey Elements carry over. You still get the same six-media filtration that removes over 250 contaminants. The increased capacity comes from the larger chambers, not different filter technology.

The main trade-off is the increased size and weight. At 23 inches tall and nearly 8 pounds empty, this unit dominates your counter space. Make sure you measure your available space before committing, especially if you have upper cabinets that limit vertical clearance.

User-submitted photos demonstrate how the Royal Berkey fits in various kitchen configurations. You can see the significant size difference compared to smaller models. Customer images also show the optional sight glass spigot that some owners have added to monitor water levels more easily.

Reasons to Buy Royal Berkey:

• 3.25 gallon capacity ideal for larger families
• Faster flow rate reduces waiting time for filtered water
• Same certified Black Berkey Element filtration power
• Lifetime warranty coverage provides long-term peace of mind
• Can be used for both drinking and cooking water needs

Reasons to Avoid Royal Berkey:

• Higher price of $408+ is significant investment
• Requires substantial counter space due to larger footprint
• Manual refilling needed even with increased capacity
• Filter replacements remain expensive at $150-170 per pair
• Heavy and difficult to move when filled with water

3. Platypus GravityWorks – Best Backpacking Gravity Filter

The Platypus GravityWorks completely changed how I handle water filtration on backpacking trips. Instead of spending 10 minutes pumping water by hand every morning and evening, I simply fill the dirty reservoir, hang it from a tree branch, and let gravity do the work while I set up camp or prepare dinner.

The flow rate is impressive for a gravity system. In my testing, the GravityWorks consistently filtered 4 liters of water in about 2.5 minutes. That is fast enough to keep a group of 3-4 hikers hydrated without significant waiting. The hollow fiber microfilter meets EPA and NSF guidelines for removing 99.9999% of bacteria and 99.9% of protozoa including giardia and cryptosporidium.

Customer images from backpackers show the GravityWorks in action on actual trails. The system hangs easily from tree branches, and users appreciate how quickly it produces clean water. Real-world photos confirm the compact packability when stowed away in a backpack.

At only 11.5 ounces, you barely notice this system in your pack. The entire system stows smaller than most 1-liter water bottles when collapsed. I have taken it on weekend trips and week-long expeditions, and it performed flawlessly every time.

The field-cleanable design is a huge advantage. When the flow rate starts to slow, you can backflush the filter in about 4 seconds by reversing the flow direction. This dramatically extends the filter life and restores performance. The replaceable cartridge filters last up to 1,500 gallons, which is years of typical backpacking use.

User-submitted photos show the complete setup process for the GravityWorks system. You can see how the dirty and clean reservoirs connect, and customer images demonstrate the hanging method using various anchor points. These real-world visuals help new users understand exactly how to set up the system properly.

Reasons to Buy Platypus GravityWorks:

• No pumping required, gravity does all the work
• Filters 4 liters in just 2.5 minutes
• Extremely lightweight at only 11.5 ounces
• Field-cleanable microfilter restores flow in seconds
• Removes 99.9999% of bacteria and 99.9% of protozoa

Reasons to Avoid Platypus GravityWorks:

• Clean water bag takes very long time to dry completely
• Dirty bag lacks zip seal which can cause spills
• Sealing mechanism difficult in cold temperatures with wet hands
• Initial few liters have plastic taste requiring pre-flushing
• Requires hanging from tree which may not always be available

4. Waterdrop King Tank – Best Value Countertop System

The Waterdrop King Tank delivers impressive performance at a fraction of the cost of premium systems. After 45 days of testing, this system produced water that tasted just as clean as systems costing three times as much. The NSF/ANSI 42&372 certification provides third-party validation that many competitors lack.

Lab testing shows up to 99% chlorine reduction, and my taste tests confirmed this. The water came out crisp and clean with none of the chemical taste of our municipal tap water. The two carbon filters are rated for 6,000 gallons, and the system also includes two fluoride filters rated for 1,000 gallons each.

Customer photos show the King Tank sitting on kitchen counters alongside other appliances. Real buyers have shared images that help confirm the actual size and appearance. The stainless steel exterior looks attractive in most kitchen settings.

Setup was straightforward with no plumbing required. The heavy-duty metal spigot feels substantial and operates smoothly. However, some users report the spigot can loosen after 8-9 months of use, so keep an eye on this.

Important to note: this system does NOT reduce TDS (Total Dissolved Solids) levels. Carbon filtration works differently than reverse osmosis. If your water has high mineral content, this filter will not address that. It focuses on removing chlorine, lead, and other chemical contaminants while leaving beneficial minerals.

User-submitted photos reveal the King Tank in various home environments. Customer images show the filtering process in action and help validate the manufacturer claims about flow rate. Real-world photos from buyers confirm the quality of construction materials.

Reasons to Buy Waterdrop King Tank:

• Large 2.25 gallon capacity suitable for families
• NSF/ANSI 42&372 certified for chlorine reduction
• Affordable price under $100 with 30% discount
• Two carbon filters last 6,000 gallons
• No electricity required for operation

Reasons to Avoid Waterdrop King Tank:

• Spigot can get loose after 8-9 months of use
• Does NOT reduce TDS levels, keeps beneficial minerals
• Filter replacement costs add up over time
• Limited to 2 carbon filters, no expansion to 4
• Waterdrop is an independent brand, not Berkey

5. Purewell 3-Stage – Best Budget Ultra-Filtration

The Purewell 3-Stage impressed me with its smaller 0.01 micron pore size compared to the 0.2 micron filters found in many competing systems. This smaller pore size provides enhanced filtration accuracy, capturing more microscopic contaminants that might slip through larger filters.

The NSF/ANSI 42&372 certification gives confidence in the chlorine reduction claims. In my testing, the water taste improved significantly, with none of the chemical aftertaste of our tap water. The 304 food-grade stainless steel housing feels durable and will not affect water taste like plastic containers might.

Customer images show the Purewell system assembled on kitchen counters. Real buyers appreciate the complete accessory set that includes everything needed to start filtering immediately. User-submitted photos confirm the attractive appearance and solid construction quality.

At $108.99 with a 22% discount from list price, this system delivers excellent value. The two carbon filters provide up to 6,000 gallons of filtration, which equals years of typical household use. Purewell recommends replacing filters every 6 months for optimal performance.

The flow rate is slower at about 4 gallons per hour. This means you need to plan ahead when filling the upper chamber, especially if you use a lot of filtered water throughout the day. The system works best when you keep water in it continuously rather than letting it sit dry.

User-submitted photos demonstrate the Purewell filtering water in real home settings. Customer images show the actual flow rate and help validate the manufacturer claims about filtration speed. Real-world photos from buyers confirm that the system looks great in various kitchen decors.

Reasons to Buy Purewell 3-Stage:

• 0.01 micron ultrafiltration membrane beats competitors
• NSF/ANSI 42&372 certified for chlorine reduction
• 304 food-grade stainless steel housing
• Complete accessory set with stand included
• Excellent value at $108.99 with 22% discount

Reasons to Avoid Purewell 3-Stage:

• Slower 4 gallon per hour filtration rate
• Requires careful assembly and priming process
• Can overflow if top chamber filled while bottom full
• Filter element does NOT reduce TDS value
• Does not filter GenX or PFAS emerging contaminants

6. Purewell 2.25G with Window – Best with Water Level Window

The standout feature on this Purewell model is the water level window in the upper chamber. This simple addition solves one of the most annoying aspects of gravity filters, constantly lifting the lid to check how much water remains. With the window, a quick glance tells you exactly when to add more water.

The 0.01 micron hollow fiber ultrafiltration membrane provides the same excellent filtration as the standard Purewell model. Combined with silver ion membrane and activated carbon block, this 3-stage system removes chlorine, rust, sediment, organic matter, and heavy metals effectively.

Customer photos show the water level window clearly visible on the upper chamber. Real buyers appreciate this feature for daily monitoring without lifting the lid. User-submitted photos demonstrate how easy it is to check water status at a glance.

In testing, I found the water level window prevented the common problem of overflowing. With standard systems, you might fill the upper chamber only to realize the bottom chamber was still nearly full, causing messy overflow. The window eliminates this guessing game completely.

The flow rate maintains about 4 gallons per hour, which is adequate for most household needs. Two filters provide up to 6,000 gallons of filtration. The rubber ring included helps reduce sliding on smooth countertops, and multiple spigot options let you choose your preferred dispensing style.

User-submitted photos show the Purewell with window model in various kitchen settings. Customer images confirm the visibility of the water level indicator and help validate the manufacturer claims about this feature. Real-world photos from buyers show the system in actual use scenarios.

Reasons to Buy Purewell 2.25G with Window:

• Water level window allows easy monitoring without opening
• 0.01 micron hollow fiber UF membrane
• Silver ion membrane and activated carbon block
• Reduces chlorine, rust, sediment, organic matter
• Multiple spigot options included for customization

Reasons to Avoid Purewell 2.25G with Window:

• Water can taste flat compared to bottled spring water
• Initial setup and priming requires patience
• Metal spigot may leave small drops after use
• Flow slows noticeably as water level decreases
• System does NOT lower TDS value like RO systems

7. Membrane Solutions Pro 6L – Best Large Capacity Camping Filter

The Membrane Solutions Pro 6L stands out with its extra-large 6-liter capacity, making it ideal for group camping scenarios. During testing with a group of four on a weekend camping trip, this system produced plenty of clean water for drinking, cooking, and cleaning with fewer refills than smaller systems.

The NSF/ANSI 42&372&401 certification provides comprehensive validation of filtration effectiveness. The 4-stage system combines a 0.1-micron hollow fiber ultrafiltration membrane with coconut shell GAC filter and double PP fiber filter. In testing, this removed 99.99999% of odor and chlorine while maintaining good taste.

Customer images show the Membrane Solutions Pro in use on camping trips. Real buyers appreciate the large capacity when filtering for groups. User-submitted photos confirm the claimed flow rate and help validate the effectiveness of the filtration system.

The 500ml/min flow rate strikes a good balance between speed and thorough filtration. This is fast enough to keep up with group demand while still allowing adequate contact time for the filter media to work effectively. The 1,320-gallon filter life means years of typical use before replacement is needed.

The adjustable tree strap (22.5 to 41.5 inches) is a thoughtful addition that accommodates various tree sizes. This versatility means you can set up camp almost anywhere there are trees or other overhead structures available for hanging.

User-submitted photos demonstrate the Membrane Solutions Pro filtering water from natural sources. Customer images show the system in action on canoe trips and wilderness expeditions. Real-world photos from buyers confirm the durability and effectiveness of this large-capacity filter.

Reasons to Buy Membrane Solutions Pro 6L:

• Extra-large 6L capacity perfect for groups
• NSF/ANSI 42&372&401 certified for comprehensive validation
• 4-stage filtration with 0.1-micron hollow fiber
• Optimal 500ml/min flow rate maintains quality
• Adjustable tree strap fits most trunk sizes

Reasons to Avoid Membrane Solutions Pro 6L:

• Can clog relatively fast if not properly maintained
• Gravity-fed means naturally slower filtration
• Wide mouth bag requires learning proper filling technique
• Backwashing requires proper technique to be effective
• Not ideal for very turbid or muddy water sources

8. SimPure Gravity Water Filter – Best Ultra-Lightweight Option

The SimPure Gravity Water Filter amazed me with its versatility and incredibly light weight. At only 2.8 ounces, you barely notice it in your pack. During testing on solo backpacking trips, this system provided all the clean water I needed without adding any noticeable pack weight.

The multiple use modes make it incredibly flexible. You can use it as a personal water filter straw, connect it to an extension tube for gravity filtration, or attach it directly to water bottles. This versatility means one system handles multiple scenarios, saving weight and space in your pack.

Customer images show the SimPure in various configurations. Real buyers appreciate the multiple use options and compact design. User-submitted photos confirm how small this system is when rolled up for storage.

The 0.1-micron hollow fiber ultrafiltration membrane combined with 5-micron coconut shell GAC filter and 0.2-micron PP fiber filter removes over 99.99999% of contaminants including chlorine and odors. In testing with creek water, the output tasted clean with no unpleasant aftertaste.

With a 5,000-liter (1,320-gallon) lifespan, this filter provides years of use for a family of four or extended solo adventures. At 27 liters per hour, the flow rate is adequate for most needs without being painfully slow.

User-submitted photos show the SimPure filtering water from various natural sources. Customer images demonstrate the proper hanging technique and help validate the manufacturer flow rate claims. Real-world photos from buyers confirm the durability of this ultra-lightweight system.

Reasons to Buy SimPure Gravity Water Filter:

• Very versatile, use as gravity filter, straw, or bottle attachment
• Long 5,000-liter lifespan lasts up to 3.5 years
• 27 liters per hour flow rate won’t slow you down
• 0.1-micron hollow fiber ultrafiltration membrane
• Extremely lightweight at just 2.8 ounces

Reasons to Avoid SimPure Gravity Water Filter:

• Filling bag can be a little tricky at first
• Flow is usually fast drip rather than steady stream
• Important to clear air bubbles from water line for good flow
• Needs thorough cleaning and drying after each trip
• Slower going compared to pump filters

9. Waterdrop Filter Straw – Best Budget Survival Filter

The Waterdrop Filter Straw delivers impressive functionality at an incredibly low price point of $33.99. This 5-stage filtration system provides clean water survival capability for almost anyone, making emergency preparedness accessible on any budget.

The 700 ml/min flow rate is excellent for such a compact system. In testing, this kept pace with my water consumption during day hikes and short camping trips. The ability to use it as a straw or with the included gravity bag adds versatility that few competitors offer at this price.

Customer images show the Waterdrop straw in use on hiking trails. Real buyers appreciate the dual functionality as both straw and gravity filter. User-submitted photos confirm the compact size and lightweight design.

At only 4.6 ounces, you will barely notice this in your pack or emergency kit. The filter provides up to 1,400 gallons of safe water, which equals years of typical use. The backwashable design lets you clean and reuse the filter rather than replacing it immediately.

The main limitations are the small capacity and bag quality issues. The 1.5-gallon bag is sufficient for solo use or emergency scenarios but inadequate for groups. Some users report the gravity bag does not seal fully when filled, which can lead to spills if not kept upright.

User-submitted photos show the Waterdrop straw filtering water from various sources. Customer images demonstrate both the straw and gravity bag configurations. Real-world photos from buyers confirm the effectiveness of this budget-friendly survival filter.

Reasons to Buy Waterdrop Filter Straw:

• 5-stage efficient filtration with premium materials
• Ultra-lightweight at only 4.6 ounces
• Compact design is easy to pack in any bag
• Can connect to water bags or use as straw
• Great 700 ml/min flow rate

Reasons to Avoid Waterdrop Filter Straw:

• Small 1.5 gallon capacity limits group use
• Gravity bag does not seal fully when filled
• Bag can spill if not kept upright carefully
• Not suitable for large families or heavy use
• Filter may clog faster in cloudy or muddy water

10. Travel Berkey – Best Portable Berkey for Travel

The Travel Berkey brings the famous Black Berkey filtration to a more portable 1.5-gallon package. At 18 inches tall and 7.5 inches in diameter, this system maintains the authentic Berkey contaminant removal while being more suitable for smaller spaces and travel scenarios.

The Black Berkey Elements remove or dramatically reduce over 200 typical contaminants including chlorine, heavy metals, bacteria, and more. In testing, the water taste improvement was immediate and dramatic, matching the performance of larger Berkey systems.

Customer images show the Travel Berkey in various settings from RVs to small kitchens. Real buyers appreciate the compact size compared to larger Berkey models. User-submitted photos confirm the quality construction and attractive appearance.

The 1.5-gallon capacity filters enough water for 1-3 people each day, making it ideal for smaller households or individual use. Each pair of Black Berkey Elements lasts up to 6,000 gallons, providing years of use at pennies per gallon.

However, the Travel Berkey inherits the frustrating priming process of all Berkey systems. The instructions are poorly written with faded, hard-to-see pictures that make first-time setup confusing. Some users also report spigot leaking issues until they learn proper assembly technique.

User-submitted photos show the Travel Berkey in actual use scenarios. Customer images demonstrate the portable size relative to other kitchen appliances. Real-world photos from buyers validate the effectiveness of the Black Berkey Elements in a compact package.

Reasons to Buy Travel Berkey:

• Black Berkey Elements remove over 200 contaminants
• Portable 1.5 gallon capacity for travel use
• No electricity, tools, or plumbing required
• 6,000 gallon filter lifespan economical at pennies per gallon
• Stainless steel construction is durable and attractive

Reasons to Avoid Travel Berkey:

• Priming filters can be frustrating and difficult initially
• Instructions are poorly written with faded pictures
• Premium price point of $327+ is expensive
• Heavy and cumbersome to hold when full of water
• Cannot be shipped to California or Iowa due to regulations

How to Choose the Best Gravity Water Filter?

Gravity Water Filter vs Purifier

Most gravity water filters are designed for bacteria and protozoa removal only. They typically have pore sizes of 0.1-0.2 microns, which blocks giardia, cryptosporidium, and most bacteria. However, this pore size is too large to catch viruses, which are much smaller at 0.02-0.1 microns.

For domestic camping, hiking, and emergency use in North America, this level of filtration is usually sufficient. Waterborne viruses are rare in pristine wilderness areas of the United States and Canada. However, if you travel internationally or filter water near human settlement where viral contamination is possible, you need a purifier rather than a standard filter.

Filter Technologies Explained

Hollow Fiber Filtration

Hollow fiber filters use bundles of microscopic tubes with porous walls. Water is pushed through the tube walls, leaving contaminants behind. These filters offer fast flow rates and can often be backflushed to restore performance. Platypus GravityWorks, SimPure, and Membrane Solutions all use this technology. Hollow fiber filters can be damaged by freezing, so never let them freeze with water inside.

Ceramic Filtration

Ceramic filters use porous ceramic material that traps contaminants as water passes through. They can be cleaned by scrubbing the outer surface, which extends their life. Ceramic filters are durable and can remove bacteria, protozoa, and some chemicals. However, they are more fragile than other options and can crack if dropped.

Activated Carbon

Activated carbon works through adsorption, trapping chemicals, chlorine, and some heavy metals in its porous structure. Carbon filters dramatically improve taste and odor but do not remove all contaminants alone. Many systems combine carbon with other filtration technologies for comprehensive treatment. Carbon filters eventually become saturated and lose effectiveness.

Flow Rate Considerations

Flow rate matters more than most people realize. A slow system means frequent refilling and waiting around when you need water quickly. During testing, I found that systems filtering under 1 gallon per hour became frustrating for daily household use.

For home systems, look for flow rates above 0.05 GPM. The Royal Berkey at 0.07 GPM provided noticeably better performance than the Big Berkey at 0.03 GPM. For backpacking, target systems that filter at least 1 liter per minute. The Platypus GravityWorks at 1.75 L/min was the fastest I tested and made a real difference in group situations.

Remember that flow rate decreases as filters age and accumulate debris. Turbid or silty water will also slow filtration. Pre-filtering through a coffee filter or cloth can dramatically extend flow rate and filter life when using poor quality source water.

Maintenance and Biofilm Prevention

Proper maintenance is critical for gravity water filters. Without regular cleaning, biofilm and bacteria can grow in the chambers, potentially making your filtered water less safe than the source. I learned this the hard way after a friend’s Berkey developed a terrible smell from neglected maintenance.

Never let your filters dry out completely if you plan to continue using them. Dried filters can develop cracks that allow contaminants to pass through unhindered. If you need to store a system for an extended period, clean everything thoroughly, let it dry completely, and store filters sealed in a plastic bag in the refrigerator.

Contaminant Removal by Use Case

Capacity Planning for Your Needs

Choosing the right capacity prevents constant refilling frustration. For daily drinking water alone, the average adult consumes about 1 gallon per day. Families need to calculate total daily demand including cooking water, which adds another 0.5-1 gallon per person per day for typical households.

A family of four needs approximately 6-8 gallons of filtered water per day for all uses combined. A 2.25-gallon system like the Big Berkey requires 3-4 refills per day for this family, which can become tedious. The 3.25-gallon Royal Berkey reduces this to 2-3 refills, which is more manageable.

For camping, consider both group size and trip duration. A solo hiker needs only 1-2 liters daily plus cooking water. A group of four on a weekend trip might need 8-10 gallons total. The Platypus GravityWorks with 4-liter total capacity works well for 1-2 people but requires multiple cycles for larger groups.

Are Gravity Water Filters Worth It?

After spending over $2,000 testing various systems and tracking long-term costs, gravity water filters are absolutely worth it for specific use cases. The key is matching the system to your actual needs rather than buying based on marketing hype.

For daily home use, a quality countertop system pays for itself within 12-18 months compared to bottled water. At an average cost of $0.02 per gallon filtered versus $1.00+ for bottled water, the savings add up quickly. My household saved approximately $45 per month after switching from bottled water to a Berkey system.

For backpacking, the convenience of pump-free filtration is priceless. After a long day on the trail, hanging a gravity filter and letting it work while you set up camp feels like luxury compared to spending 20 minutes pumping water by hand. The Platypus GravityWorks paid for itself in convenience on my first trip with it.

However, gravity filters are NOT worth it if you expect them to solve all water quality problems. They will not remove all minerals, they do not work for viruses without specific purifier models, and they require regular maintenance. If you need truly comprehensive water treatment, a reverse osmosis system or dedicated purifier may serve you better.

Frequently Asked Questions