A 3 gallon tank means fewer refills for a household that drinks, cooks and makes coffee from the filter. These systems are about 21 to 28 in tall, so measure the space first. Several take a third or fourth element for faster flow.
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Full ranking 6
- Culligan MaxClear Venture 1 Filter#1 of 6Full review
A 3 gal MaxClear that can grow into three filters. A good base if you plan to add filters later.
Amazon $199$1993 galNSF/ANSI 42- - Culligan MaxClear Venture 3 Filters#2 of 6Full review
The fully loaded Venture. It makes sense for a busy kitchen where a one-filter system would hold up the line.
Amazon $309$3093 galNSF/ANSI 42- - ProOne Big+ 3 Gal#3 of 6Full review
A 3 gal stainless gravity filter that uses ProOne G2.0 filters. A mid-priced option, though the listing publishes little about flow, filter gallons or warranty.
Amazon $229.95$229.953 galNSF/ANSI 42- - Boroux Legacy 3 Gal#4 of 6Full review
A Royal Berkey sized 3 gal stainless filter with long-life carbon filters. A fair price, but the filters lack an NSF reduction certification.
Amazon $399$3993 galNSF/ANSI/CAN 3726,000 gal each - Royal Berkey#5 of 6Full review
The middle Berkey for a household that drinks and cooks with filtered water. A step up from the Big Berkey without needing much more space.
Amazon $408$4083.2 galTested only3,000 gal each - Berkey Light#6 of 6Full review
A lightweight 2.75 gal Berkey for places where a stainless tank is too heavy to move. Pick it for portability, not price.
Amazon $335$3352.8 galTested only3,000 gal each
