Countertop Water Filters
Best Countertop Gravity Water Filter (2026): Top 5 by the Specs
As an Amazon Associate we earn from qualifying purchases. Specs below come from each product's Amazon listing; we do not test products in person.
For the best countertop gravity water filter, the Purewell leads with 3 stages, NSF/ANSI 42 and 372 certification, a 3,000-gallon filter life and a 2.25-gallon capacity. The IceJoy adds a 0.01-micron membrane with the same 3,000-gallon filter life, while the Waterdrop adds 4 filters with NSF/ANSI 42 and 372 certification.
Starting out? See the main guide: Best Countertop Water Filter
Top picks at a glance
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Compare the specs
Ranked on filtration stages, filter life from each listing, plus how many buyers have rated it. A dash (—) means we could not confirm that figure from the listing.
| Pick | Filtration stages | Filter life | NSF/ANSI standards | Weight | Warranty |
|---|---|---|---|---|---|
| 1. Purewell 3-Stage 0.01μm Ultra-Filtration Gravity Water Filter | 3 stages | 3,000 gal | NSF/ANSI 42, 372 | 8.5 lb | — |
| 2. IceJoy Ultra-Filtration Gravity Water Filter System | — | 3,000 gal | NSF/ANSI 42 | — | — |
| 3. Waterdrop TK-FS Gravity Water Filter System | — | — | NSF/ANSI 42, 372 | — | 1-year |
| 4. GLACIER FRESH PC04 Gravity-Fed Countertop Water Filtration | — | 200 gal | — | — | — |
| 5. Culligan MaxClear Gravity Water Filter System | — | — | NSF/ANSI 42 | 10.03 lb | — |
Purewell 3-Stage 0.01μm Ultra-Filtration Gravity Water Filter
It pairs 3 stages with NSF/ANSI 42 and 372 certification, a 3,000-gallon filter life and a 2.25-gallon capacity.
- Filtration stages: 3 stages
- Filter life: 3,000 gal
- NSF/ANSI standards: NSF/ANSI 42, 372
Good for
- Buyers who want 3 filtration stages
- Buyers who want NSF/ANSI 42 and 372 certification
Skip it if
- You want a filter life over 3,000 gallons
- You want a unit under 8.5 lb
It filters through a 0.01μm hollow fiber UF membrane, a silver ion membrane and activated carbon. The 304 stainless steel housing sits on a stand with a spigot, and the system needs no electricity. The single filter element lasts 3,000 gallons, and the elements are replaced every 6 months.
IceJoy Ultra-Filtration Gravity Water Filter System
It pairs a 0.01-micron membrane with NSF/ANSI 42 certification, a 3,000-gallon filter life and a 2.25-gallon capacity.
- Filter life: 3,000 gal
- NSF/ANSI standards: NSF/ANSI 42
Good for
- Buyers who want a sight glass spigot
- Buyers who want NSF/ANSI 42 certification
Skip it if
- You want a filter life over 3,000 gallons
- You want a capacity over 2.25 gallons
Each composite filter combines a hollow fiber UF membrane, a silver-ion membrane and activated carbon. The sight glass spigot shows the water level in the lower chamber, and the 304 stainless steel build needs no electricity or plumbing. Each filter purifies up to 3,000 gallons, and filters last up to 6 months.
Waterdrop TK-FS Gravity Water Filter System
It pairs 4 filters with NSF/ANSI 42 and 372 certification, a 2.25-gallon capacity and a 1-year warranty.
- NSF/ANSI standards: NSF/ANSI 42, 372
- 1-year warranty stated
Good for
- Buyers who want 4 filters in one system
- Buyers who want a 1-year warranty
Skip it if
- You want a capacity over 2.25 gallons
- You want a warranty longer than 1 year
It holds 2 carbon filters and 2 fluoride filters, with a metal water-level spigot and a stand. The 304 stainless steel housing needs no electricity, and the black carbon filter carries NSF/ANSI 42 certification. The system carries NSF/ANSI 372 certification, and the capacity suits a family of 4.
GLACIER FRESH PC04 Gravity-Fed Countertop Water Filtration
It pairs Elarisey electrosorption with a 200-gallon filter life, a 2.25-gallon capacity and a 3-month replacement cycle.
- Filter life: 200 gal
Good for
- Buyers who want electrosorption filtration
- Buyers who want a 2.25-gallon system
Skip it if
- You want a filter life over 200 gallons
- You want a capacity over 2.25 gallons
It uses Elarisey electrosorption to attract submicron contaminants and reduce heavy metals. The stainless steel system installs with no plumbing, and it needs no electricity. Each cartridge delivers up to 200 gallons, and the cartridge is replaced every 3 months.
Culligan MaxClear Gravity Water Filter System
It pairs a ceramic and carbon filter with NSF/ANSI 42 certification, a 2.25-gallon capacity and a 6-month filter life.
- NSF/ANSI standards: NSF/ANSI 42
Good for
- Buyers who want a ceramic and carbon filter
- Buyers who want NSF/ANSI 42 certification
Skip it if
- You want a filter life over 6 months
- You want a capacity over 2.25 gallons
It combines a durable ceramic shell with carbon media, and it is certified to NSF/ANSI 42 standards to reduce microplastics, lead and Total PFAS. The brushed stainless steel dispenser nests under 12 inches when not in use, and it needs no electricity or plumbing.
How to choose
Filter life in gallons
Filter life differs across this list. The Purewell single filter element lasts 3,000 gallons. The IceJoy filter purifies up to 3,000 gallons. The Waterdrop carbon filters filter up to 6,000 gallons. Its fluoride filters filter up to 1,000 gallons. The Glacier cartridge delivers up to 200 gallons. The Culligan filter lasts up to 6 months. Compare gallon figures with gallon figures, and month figures with month figures.
Certification and stages
Certification differs across this list. The Purewell carries NSF/ANSI 42 and 372 certification. The IceJoy carries NSF/ANSI 42 certification. The Waterdrop carries NSF/ANSI 42 and 372 certification. The Culligan carries NSF/ANSI 42 certification. The Purewell has 3 stages. Check the certification numbers before you buy.
Capacity and setup
Capacity matches across this list at 2.25 gallons for every system. All five run on gravity. The Purewell and the IceJoy fill from the top and collect filtered water below. The Purewell and the Waterdrop include a stand. Place the system on a countertop near where you pour water, and check the level before you add water to the upper chamber.
FAQ
How many gallons does each filter last?
The Purewell single filter element lasts 3,000 gallons. The IceJoy filter purifies up to 3,000 gallons. The Waterdrop carbon filters filter up to 6,000 gallons. The Glacier cartridge delivers up to 200 gallons.
Which systems carry NSF/ANSI certification?
The Purewell carries NSF/ANSI 42 and 372 certification. The IceJoy carries NSF/ANSI 42 certification. The Waterdrop carries NSF/ANSI 42 and 372 certification. The Culligan carries NSF/ANSI 42 certification.
What capacity do these systems hold?
Each system holds 2.25 gallons, so the capacity matches across all five systems.
What are the filter replacement times?
The Purewell elements are replaced every 6 months. The IceJoy filters last up to 6 months. The Glacier cartridge is replaced every 3 months. The Culligan filter lasts up to 6 months.
