Best Countertop Water Filter

Introduction

A countertop water filter offers a step up from pitcher filters — higher filtration capacity, faster flow rate, and often more thorough contaminant removal, without the need for installation under the sink. If you want clean water on demand without waiting for a pitcher to filter, a countertop system is the right choice. Here are the best options.

Countertop Filter vs Pitcher Filter — Key Differences

Factor	Countertop Filter	Pitcher Filter
Filtration capacity	High (gallons per day)	Low (fills slowly)
Contaminant removal	More thorough	Basic to moderate
Installation	None (gravity) or tap connection	None
Cost upfront	Higher	Lower
Cost per gallon	Lower long-term	Higher long-term
Best for	Whole household, heavy use	1–2 people, light use

Best Countertop Water Filters

Best Gravity Filter: Big Berkey Stainless Steel Water Filter System

The Big Berkey is the gold standard of gravity-fed countertop water filters. It requires no electricity, no installation, and no connection to your plumbing — simply fill the top chamber with tap water and gravity pulls it through the Black Berkey filter elements into the lower chamber. The 2.25-gallon capacity is ideal for families, and the stainless steel construction is built to last for years.

The Black Berkey elements are among the most thorough filters available, removing or reducing:

Bacteria and viruses (99.9999%+)
Heavy metals: lead, arsenic, mercury
Chlorine and chloramine
PFAS/PFOA
Pharmaceuticals and pesticides
Sediment and particulates

Capacity: 2.25 gallons
Filter elements: 2 Black Berkey elements (included)
Filter life: Up to 3,000 gallons per element (6,000 gallons total)
No electricity or installation required
Best for: Families, off-grid use, anyone who wants the most thorough filtration available

Check Big Berkey price on Amazon →

Best Pitcher for High-Volume Filtering: ZeroWater 20-Cup Ready-Pour Dispenser

If you want maximum contaminant removal in a pitcher-style format with a large capacity, the ZeroWater 20-Cup is the best option. Its 5-stage ion exchange filtration reduces TDS to near zero and is certified to remove lead, chromium, and PFOA/PFOS. The large 20-cup reservoir means less frequent refilling.

Capacity: 20 cups
Filtration: 5-stage ion exchange
Certified: IAPMO certified for lead, chromium, PFOA/PFOS
Includes: Free TDS meter
Best for: Households wanting certified contaminant removal without a gravity system

Check ZeroWater 20-Cup price on Amazon →

Which Countertop Filter Is Right for You?

Want the most thorough filtration including bacteria and viruses? → Big Berkey
Want certified heavy metal and PFAS removal in a compact pitcher? → ZeroWater 20-Cup
Large family or heavy daily water use? → Big Berkey (6,000 gallon filter life)
Renting and can't modify anything? → Either — both require zero installation

Maintenance Tips

Clean the Berkey chambers monthly with mild soap and water
Re-prime Black Berkey elements if flow rate slows significantly
Replace ZeroWater filters when TDS meter reads 006 or higher
Keep filtered water covered to prevent recontamination

Final Thoughts

For the most thorough countertop filtration available — including bacteria, viruses, heavy metals, and PFAS — the Big Berkey is unmatched. For a more compact option with certified contaminant removal, the ZeroWater 20-Cup delivers excellent performance. Either way, you'll be drinking significantly cleaner water than straight from the tap.

Back to blog