Gravity Filters
Stainless steel countertop systems that filter water using gravity alone. Larger capacity than pitchers, no electricity needed. Popular for emergency prep and off-grid living.
System Cost
$180 - $405
Annual Filters
$10 - $130 depending on elements
Installation
None
How It Works
Water is poured into an upper stainless steel chamber and drips through cylindrical filter elements into a lower chamber. The filter elements use a combination of micro-porous ceramic, activated carbon, and proprietary media to remove contaminants. Gravity does all the work - no pump, no pressure, no electricity. Upper elements typically last thousands of gallons before replacement. Flow rate is slow (about 1 gallon per hour with 2 elements).
What It Removes
Removes Well
- Chlorine taste and odor
- Lead and heavy metals (certified models like ProOne)
- PFAS (ProOne with NSF 401 certification)
- Microplastics (certified models)
- Sediment and rust
Does NOT Remove
- TDS / dissolved minerals
- Fluoride (unless using optional fluoride elements)
- Nitrates
- Hardness / scale
Installation
None. Unbox, assemble the two chambers (takes 10 minutes), prime the filter elements, and fill. No plumbing, no electricity, no tools.
Who Should Choose Gravity Filters?
Good fit if you...
- ✓Off-grid homes and cabins
- ✓Emergency preparedness and water storage
- ✓Large families who want countertop filtration without constant pitcher refills
- ✓Travelers and RV owners
Not ideal if you...
- ✗Anyone who needs fast filtered water (gravity is slow)
- ✗Small kitchens with limited counter space (these are tall)
- ✗Buyers who require NSF certification (Berkey has none; ProOne does)
- ✗Hard water areas (gravity filters don't soften water)
Gravity Filters in Our Database
3 products sorted by price (lowest first).
ProOne Big+
6mo filter life
$184
$126.32/yr filters
Price checked Apr 2026
AquaCrest Gravity
6,000 gal
$210
Price checked Apr 2026
Berkey Big Berkey
6,000 gal
$367
$10/yr filters
Price checked Apr 2026
Related Resources
Check what contaminants are in your water
Open Tool →Informational guidance based on NSF certifications and manufacturer specs - not a substitute for professional water testing.