The 11 Best Gravity Water Filters & Buying Guide
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If you stay in an area with power issues or do not prefer RO, UF, or UV water filters, a gravity water filter is your best option. A gravity-based water filter system works on the principle of gravity that pushes the water down while it filters. It does not need any power supply to work and uses the simple technique of reverse osmosis or distillation. But with so many variants on the market, it is easy to get confused when choosing one. Don’t worry. We compiled a list of the best gravity water filters to ease your confusion. Check it out.
In This Article
11 Best Gravity Water Filters
1. SimPure Gravity Water Filter
The SimPure Gravity Water Filter is made of FDA-certified food-grade plastics. It has a 0.1-micron ultrafiltration membrane attached with a 5-micron coconut shell and 0.2 micron PP fiber filter. This filtration system removes 99.99% heavy metal, chlorine, and other contaminants to give you clean drinking water. This gravity water filter comes with a 3-liter food-grade storage bag. It includes an extension tube to draw water from ponds, rivers, or any water source. It is portable, and you can carry it anywhere you want to.
Specifications
- Size: 9.8 x 1.1 inches
- Material: ABS plastic
- Flow rate: 450 ml per minute
- Water Capacity: 3 liters
Pros
- FDA-certified
- BPA-free plastic
- Portable
- 3-stage filtration
Cons
- Not durable
2. Travel Berkey Water Filter
Travel Berkey is a 1.5-gallon portable water filter. It is equipped with two pairs of the Berkey Purification Elements that purify over 99.99% of metals, minerals, pathogenic bacteria, and protozoa. The Berkey Purification Elements last for 6,000 gallons before replacement. This water filter is tested in various third party labs and is an efficient gravity-fed filtration system.
Specifications
- Size: 7.5×7.5 x18 inches
- Material Used: Stainless steel
- Flow Rate: 0.05 gallons per minute
- Water Capacity: 1.5 gallons
Pros
- Rapid filtration
- Tested for quality
- Durable
Cons
- Expensive
3. Santevia Gravity Water System
This highly efficient gravity water filter claims to purify 99% of the chlorine, fluorides, rust, and bacteria. The Santevia Gravity Water Filter uses an eight-stage filtration technique. It has a 0.3-micron ceramic pre-filter that removes microplastics, sediments, bacteria, and parasites from the water. The porous Maifan stones in the filter help oxygenate the water, and the fluoride filter removes chemicals and heavy metals. It also adds beneficial minerals to your drinking water.
Specifications
- Size: 13×13 x10 inches
- Material Used: BPA-free plastic
- Flow Rate: 0.15 gallons per minute
- Water Capacity: 1.3 gallons upper tank, 2.6 gallons lower tank
Pros
- Microplastic filtration
- Optimal pH balance
- BPA-free
- BPS-free plastic
Cons
- May leak
4. SHTFandGo4) Gravity Well Ultra Water Filter
This product claims to be the fastest water gravity water filter. The Gravity Well Ultra Water Filter gives you over 9000 gallons of purified water. It has Ultraviolet water sterilizing capacity and three black carbon filters that remove the contaminants and particles of about 2 microns. The UVC lamp in this filter is rechargeable by either a hand crank dynamo charger or solar energy. It has a 7-gallon storage capacity, sufficient for 2-3 people.
Specifications
- Size: 18 x12 x13 inches
- Material: High-quality plastic
- Flow Rate: 0.058 gallons per minute
- Capacity: 7 gallons
Pros
- Durable
- Easy to operate and assemble
- Includes hand pump
- Includes filter cleaning tools
Cons
- Slow filtration
5. LifeStraw Flex Advanced Water Filter
The LifeStraw Gravity Water Filter has a carbon-fiber capsule to purify water and eliminate the contaminants. The filter in this product exceeds US EPA drinking water standards and NSF 53 standards and removes bacteria, parasites, heavy metal, and lead contamination efficiently. It has a two-stage filtration process that also removes 99.99% of protozoa and microplastics. This portable water filter is best for outdoor activities and travel.
Specifications
- Size: 11 x 3 x 5.5 inches
- Material: Food-grade plastic
- Flow Rate: 0.125 gallons per minute
- Capacity: 1 gallon
Pros
- Durable
- Compact
- lightweight
- Multiple filters
- 3-year warranty
Cons
- Intermittent flow
6. Doulton Gravity-Fed Water Filter
This gravity water filter has ceramic candles that remove pathogenic bacteria, turbidity, and pollutants from the water. The activated charcoal filtration system can remove particles as minute as 0.9 microns. The filters can be cleaned and are reusable. The water filter has a capacity of 4.2 gallons, is made from eco-friendly materials, and is easy to operate.
Specifications
- Size: 12.6 x 16.5 x12.8 inches
- Material: Ceramic and food-grade plastic
- Flow Rate: 0.0044 gallons per minute per candle
- Capacity: 4.2 gallons
Pros
- Easy to install
- Easy to use
- Reusable candles
- Moderately priced
Cons
- Slow water filtration
7. Platypus Gravity Works High-Capacity Water Filter System
This gravity water filter system is ideal for camping, traveling, and outdoor activities. The filter has a capacity of 2.11 gallons, 1.05 gallons in the clean reservoir, and 1.05 gallons in the dirty reservoir. The Platypus GravityWorks Water Filter System meets EPA and NSF guidelines to provide the purest water. It removes 99.99% germs, bacteria, parasites, and other contaminants from the water.
Specifications
- Size: 9.5 x 3.25 inches
- Material: Polyethylene
- Flow Rate: 0.46 gallons per minute
- Capacity: 1.05 gallons
Pros
- Lightweight
- Portable
- No pumping
- Filters quickly
- Meets EPA/NSF guidelines
Cons
- Tough to clean
8. Miniwell Gravity Water Filter
The Miniwell Gravity Water Filter is perfect for hiking and other outdoor activities. It can efficiently filter over 500 gallons of water in its lifetime. It can filter contaminants with 0.1 microns pore size. The gravity water filer has a sidelock design and wide-mouth opening for easy fill-ups. This filtration system can be connected inline. It comes with a tree strap, pocket-size filter, carry bag, hose and hose-clip, collapsible bottle, and unfiltered water reservoir. This product is approved by FDA and CE certified.
Specifications
- Size: 7.56 x 1.85 x 4.06 inches
- Material: Plastic
- Flow Rate: 0.158 gallons per minute
- Capacity: 0.92 gallons
Pros
- Easy to use
- Portable
- Lightweight
- Environment-friendly
- Backflushing
Cons
- Cannot filter heavy sediment
9. Sawyer Products One-Gallon Gravity Water Filtration System
The Sawyer One-Gallon Gravity Water Filtration System is a single bladder filter for outdoor usage. It is a dual-thread filtration system with a 0.1-micron inline filter with easy on and off functions. It is ideal for filtering even highly contaminated water and easily removes all pollutants and pathogens. The filter is durable and long-lasting and can filter up to 100,000 gallons of water in its lifetime.
Specifications
- Size: 5.8 x13.8 x 2.8 inches
- Material: Hollow fiber membrane
- Capacity: 1 gallon
- Flow Rate: Not specified
Pros
- Quick filtration
- Lightweight
- Portable
- Durable
- High flow rate
Cons
- Not suitable for sandy water
10. Katadyn Gravity BeFree 3.0L Water Filter
The Katadyn Gravity Water Filter is a high-quality product and complies with EPA standards. It has a collapsible 0.79-gallon hydrapak soft bottle flask. It is easy to clean and requires no backflushing or cleaning tool. It can filter up to 264 gallons of water and has free-flow channels for a better flow rate. The filter is made of BPA-free thermoplastic polyurethane and is perfect for traveling and outdoor activities.
Specifications
- Size: 9 x 2.9 x 17.6 inches
- Material: Thermoplastic polyurethane
- Flow Rate: 0.52 gallons per minute
- Capacity: 0.79 gallons
Pros
- Easy to use
- BPA-free
- Easy cleaning
Cons
- Plastic taste
11. ZeroWater (ZBD-040-1) 40 Cup Ready-Pour Glass Dispenser
The ZeroWater Gravity Filter has a 5-stage filtration process and is NSF certified for safe drinking water. It holds of 40 cups ready-to-pour water and is suitable for kitchens and offices. The filter can remove 99.6% of contaminates, germs, lead, and heavy metal and is tested for high performance. It has a no-drip push-to-pour spigot and is easy to use.
Specifications
- Size: 11x 9.75 x19.75 inches
- Material: Glass and stainless steel
- Flow Rate: 2.5 gallons per day
- Capacity: 2.50 gallons
Pros
- Elegant glass body
- Compact
- NSF certified
Cons
- Inconsistent flow
- Flimsy spigot
These are some of the best-rated gravity water filter models that you can buy online. Before you pick any of these, consider a few points.
Things To Consider Before Buying A Gravity Water Filter
1. Filter Capability
Check if the water filter performs efficiently. Go for the one that filters a high percentage of contaminants from the water and works at a decent speed.
2. Filter Capacity
This is another critical point to consider. Water filters have different storage capacities. Some are best for a single person, and some are suitable for families. Buy one that you think can meet your needs.
3. Household Size
The size of the water gravity filter you buy is directly proportional to your household size. If your family size is 2-3 persons, go for a slightly bigger variant.
4. Filter Replacement Frequency
Ensure that the filters work for a couple of months or have a usage potential of at least enough gallons before you need to replace them.
5. Chamber Material
The two most commonly used chamber materials are stainless steel and plastic. It is best to go for stainless steel to ensure both quality and durability. Plastic ones may be affordable but are not durable.
6. Durability
There is no point in buying a filter that needs frequent servicing. Check the lifespan of the product. Check how long the filter may serve before it needs servicing or repairing accessories.
Compared to RO and electric filters, gravity water filters are affordable and convenient to use. They come in a variety of models that are also travel-friendly, ensuring a steady supply of pure water. We have provided a list of products that are appropriate for home as well as outdoor use. Pick any of them that fits your needs.
Frequently Asked Questions
How do gravity water filters work?
The upper chamber of the filter holds impure water and filters it. The filtered water then permeates to the lower chamber while the pollutants are blocked.
What are the benefits of buying a gravity water filter?
Gravity water filters are easy to install and maintain. They can be portable, travel-friendly, and do not need any power supply.
What kind of maintenance do gravity water filters require?
You may need to replace the filter annually or twice a year. The tubes may need to be cleaned once in two months.
Do gravity water filters remove beneficial minerals?
No. Gravity water filters work on principles of permeability and reverse osmosis and retain most of the beneficial minerals.
Can gravity water filters remove chloramine?
Yes. They remove almost all external pollutants and heavy metals, including chloramine.
