About the Duraflo™ Replacement Water Filters by Sagan Life®
The DuraFlo™ Water Filter Replacement is compatible with countertop, candlestick and gravity fed water filter systems. The DuraFlo™ Water Purification Filter – used in the AquaBrick® Water Purification System – is tested and proven by independent water laboratories to remove:
- 99.9999% of Bacteria, such as E-Coli
- 99.99% of Virus
- 99.99% of Parasites such as Cryptosporidium and Giardia
Includes Replacement Filter only.
The DuraFlo™ water filter replacement was tested and proven using “End of Life” testing. Its effectiveness was established at:
- 550 gallons for the removal of viruses
- 700 gallons for the removal of bacteria, giardia, other waterborne toxins, and chemicals
- 500 Gallons for purification of swimming pool water
The DuraFlo™ Filter also effectively reduces heavy metals and other contaminants such as:
- lead
- fluoride
- chlorine
- industrial waste
- toxic chemicals and pharmaceuticals
HOW IT WORKS
The DuraFlo Filter is part of the AquaBrick Water Filtration System. The filtration process works by using air pressurization inside the constainer to force the contaminated water through the filter cartridge.
Assemble the system by attaching the filter to the tubing in the underside of the container cap. Place the cap back on top of the container mouth and twist the cap to ensure an airtight seal. Squeeze the bulb shaped hand pump several times. This will add air to the container. The AquaBrick is now pressurized. Use the spout to pour water into your glass or other container. The pressurized air inside the container forces water through the filter then out the spout.
For instructions on how to use the DuraFlo as a replacement filter inside countertop gravity fed water filtration systems, such as Berkey®, Doulton® or AquaRain® brands, watch the video near the top of our product page.

Use As A Replacement Filter For Most Countertop Gravity Fed and Candlestick Water Filtration Systems
The DuraFlo™ Replacement Filter offers powerful water purification for use in many countertop systems such as Berkey®, Doulton®, and AquaRain®. So power up your gravity water filter system with the DuraFlo™ water filter replacement.
Purify Your Swimming Pool Water
The DuraFlo™ is the best survival water filter system cartridge! It effectively removes chlorine and other swimming pool chemicals from water, so you can use your swimming pool as a source of emergency drinking water.
Fast Flowing Water Filter
Using the DuraFlo™ replacement filter with your AquaBrick® Portable Water Filtration System will get you fast, safe, potable water purifying approximately 1/2 gallon of water per minute, providing 30 gallons of purified water in an hour. That’s fast!
Our Sagan Life® water purifiers meet or exceed US EPA Water Quality Standards.
See and download our test results here.
Amy Ross –
Love that this filter removes fluoride! I have been reading a lot about fluoride effects of water and can’t understand why do they put fluoride in our water? It seems ridiculous that so many other countries have banned the addition of fluoride in the water and most of the US still does it. Anyway – this makes me feel better about drinking water for my family.
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