You do not need a $400 Berkey for a 2.25 gallon tank. These systems cost $120 to $199 and several state certifications for their filters.
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Best Gravity Water Filters Under $200: Up to 2.25 gal
- Purewell 3-Stage PW-OB#1 of 10Full review
A low-priced, certified-filter 2.25 gal system for chlorine, taste and sediment. Fluoride needs a different model.
Amazon $145.99$145.992.2 galNSF/ANSI 42, NSF/ANSI 3723,000 gal each - Waterdrop TK-A#2 of 10Full review
A well-priced 2.25 gal system with certified carbon filters. The easy pick if you want Berkey-size capacity for less.
Amazon $159.99$159.992.2 galNSF/ANSI 42, NSF/ANSI 3723,000 gal each - Culligan MaxClear Scout 1 Filter#3 of 10Full review
The entry Culligan MaxClear with a certified filter for people who want a name-brand 2.25 gal system at a low price.
Amazon $155$1552.2 galNSF/ANSI 42- - Waterdrop TK15-A#4 of 10Full review
A small, low-priced certified gravity filter for one to three people, a trip or an RV.
Amazon $119.99$119.991.5 galNSF/ANSI 42, NSF/ANSI 3723,000 gal each - Waterdrop TK-AB-FS#5 of 10Full review
A cheaper way to get fluoride filters in the box than the TK-FS, with silver in the carbon filters.
Amazon $199.99$199.992.2 galNSF/ANSI 42, NSF/ANSI 3723,000 gal each - Purewell SF-2.25G PFAS-Free 6-Stage#6 of 10Full review
The Purewell to pick when PFAS and lead are the concern. It uses a different filter than the other Purewells.
Amazon $168.99$168.992.2 galNSF/ANSI 423,000 gal each - Culligan MaxClear Scout 2 Filters#7 of 10Full review
The Scout with its full set of two filters. Buy this one if you will fill the tank daily.
Amazon $199$1992.2 galNSF/ANSI 42- - Purewell 2.25G 3-Stage Window#8 of 10Full review
The 3-stage Purewell with a water-level window. It costs a little more than the certified PW-OB.
Amazon $158.99$158.992.2 galNone stated3,000 gal each - Waterdrop TK-AE#9 of 10Full review
For people who want faster flow than a two-filter 2.25 gal system and can do without a certification claim.
Amazon $189.99$189.992.2 galNone stated3,000 gal each - Glacier Fresh PC04#10 of 10Full review
A newer 2.25 gal system with a different filter technology. Short filter life makes it expensive to run.
Amazon $169.99$169.992.2 galTested only200 gal each
Best Gravity Water Filters Under $200: 2.5 to 3.5 gal
- Culligan MaxClear Venture 1 Filter#1 of 1Full 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-