Which is better for a family of five?

The ProPur ProOne Big+. Its 3-gallon tank is rated for 4 or more people, while the Big Berkey is rated for 1 to 4.

Does the Big Berkey remove fluoride?

Not with the standard Black Berkey elements. You need to add separate fluoride elements, which cost extra. The ProPur ProOne G2.0 element removes fluoride out of the box.

Which lasts longer between filter changes?

The Big Berkey. Black Berkey elements are rated for 3,000 gallons each; ProPur rates its elements at about 6 months.

Is the ProPur worth it over the Berkey?

Yes if you want fluoride removal and more capacity for less money. The ProPur is $229.95 at Amazon versus $249.99 at eBay for the Berkey as of November 6, 2026.

Which takes up less counter space?

The Big Berkey. It is 8.25 inches in diameter; the ProPur is 11.75 inches wide.

Can both be used off-grid?

Yes. Both are gravity-fed and need no electricity, and both work with non-tap water sources.

Berkey Big Berkey Water Filter vs ProPur ProOne Big+ Gravity Water Filter

Buy the ProPur ProOne Big+ if you want more capacity and fluoride removal for less money: it is $229.95 at Amazon as of November 6, 2026, against $249.99 at eBay for the Big Berkey. Choose the Big Berkey if you want the better-known system with a long 3,000-gallon cartridge rating and a smaller footprint. The ProPur holds 3 gallons and serves 4 or more people; the Berkey holds 2.25 gallons and is rated for 1 to 4.

Today the ProPur ProOne Big+ Gravity Water Filter costs $20.04 less at its best price.

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