Looking For Replacement Filters For Your Gravity System?
Did you know that ProOne® G2.0 gravity filters fit most competitive gravity system brands including Alexapure, AquaCera, Doulton (British Berkefeld), Berkey®, Patriot Pure, and Waterdrop?* With four different sizes available, rest assured there is a ProOne® G2.0 gravity filter to meet and exceed your needs.
Here’s what you should know about the ProOne® G2.0 filter:
- NSF/ANSI-42 component certified quality – we don’t just say it, we back it up – see our NSF certification
- NSF/ANSI standards independently lab tested – see our published lab report
- All-in-one filter technology – no add on fluoride filter required
- No need to store in a wet container when not in use
- Comes with a full factory warranty – no prorated terms
- Does not contain alumina (aluminum oxide)
- Does not contain coconut carbon
- Silver infused to help prevent the growth of bacteria
Why is NSF important?
NSF is the leading global, third-party testing and certification organization for products that come in contact with drinking water. Third-party, independent certification is important for consumers when purchasing drinking water filters because it is the only objective way to validate a manufacturer’s product health and performance claims. The NSF certification process gives confidence to consumers by allowing them to confirm that the product performs as claimed.
Your #1 choice in replacement gravity filters.
Most tested. Most trusted.TM

Showing all 5 results
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ProOne® G2.0 9″
1200
gallons
Fits ProOne® Big+ & Propur King
Compatible with competitor systems
For daily use$83.95 – $298.95Select options -
ProOne® G2.0 7″
1000
gallons
Fits ProOne® Traveler+, Big II & Big+
Fits Propur Nomad & Big
Compatible with competitor systems
For daily use$78.95 – $208.95Select options -
ProOne® G2.0 5″
900
gallons
Fits ProOne® Traveler+ & Big II
Fits Propur Traveler & Nomad
For daily use$72.95 – $135.95Select options -
ProOne® G2.0 KOHLER® Replacement Filter
900
gallons
Fits Kohler Clarity Gravity System
Fits Kohler Clarity Pro Gravity System
$72.95Add to cart -
ProOne® G2.0 M for ProOne® Water Pitcher
225
gallons
For ProOne® Water Pitcher
For daily use$29.37Add to cart