Why You Need a Water Filter in 2026
Recent reports from the Environmental Working Group have found that tap water in most US communities contains detectable levels of PFAS chemicals, lead, and other contaminants. While municipal water systems meet minimum federal standards, those standards have not been updated to address many modern contaminants. A quality water filter provides an essential additional layer of protection for your family.
The three most popular consumer water filtration brands are Brita, PUR, and Berkey. Each takes a different approach to filtration, and understanding the differences will help you choose the right system.
Brita — Best for Everyday Convenience
Brita remains the most widely recognized name in home water filtration, offering pitcher, faucet-mount, and dispenser systems at accessible price points.
- Filtration type: Activated carbon and ion exchange resin
- Contaminants removed: Chlorine taste, mercury, copper, zinc, cadmium
- Filter life: 40 gallons (Standard) or 120 gallons (Elite/Longlast)
- Cost per gallon: $0.06 to $0.11
- Initial investment: $25 to $45 for pitchers
- Annual filter cost: $28 to $56
Brita's Elite filter is a significant upgrade over the Standard, reducing PFAS, lead, and asbestos in addition to basic taste and odor improvements.
PUR — Best for Lead and PFAS Removal
PUR filters are NSF-certified to remove more contaminants than Brita's standard filters, making them a strong choice for households concerned about lead and PFAS exposure.
- Filtration type: Activated carbon with lead reduction media
- Contaminants removed: Lead, PFAS, mercury, pesticides, pharmaceuticals
- Filter life: 40 gallons (Basic) or 100 gallons (PLUS)
- Cost per gallon: $0.07 to $0.13
- Initial investment: $25 to $40 for pitchers
- Annual filter cost: $32 to $64
Berkey — Best for Comprehensive Filtration
Berkey stands apart with its gravity-fed stainless steel design and Black Berkey purification elements that remove a wider range of contaminants than any pitcher filter. It operates without electricity or water pressure, making it ideal for emergency preparedness.
- Filtration type: Proprietary gravity-fed purification elements
- Contaminants removed: Bacteria, viruses, PFAS, heavy metals, pharmaceuticals, pesticides
- Filter life: 3,000 gallons per element (6,000 gallons per pair)
- Cost per gallon: $0.02 to $0.04
- Initial investment: $280 to $400 for countertop systems
- Annual filter cost: $20 to $40 (elements last 2 to 5 years)
If your primary concern is comprehensive contaminant removal at the lowest long-term cost, Berkey delivers the best value. The higher upfront price is offset by filters that last years instead of months and a per-gallon cost under four cents.
Head-to-Head Comparison
For a family of four using approximately 100 gallons per month:
- Brita (Elite): $45 initial + $56/year in filters = $157 first year
- PUR (PLUS): $40 initial + $64/year in filters = $168 first year
- Berkey (Big Berkey): $350 initial + $0 first year filters = $350 first year, then $20 to $40 per year ongoing
Over a five-year period, Berkey costs approximately $430 total, while Brita comes to $325 and PUR to $360. However, Berkey removes significantly more contaminants, making the per-contaminant-removed cost much lower.
Which Filter Is Right for You?
Choose Brita if you want affordable, convenient filtration for basic taste improvement and light contaminant reduction. Choose PUR if lead and PFAS are concerns in your water supply and you want better filtration in a pitcher format. Choose Berkey if you want the most thorough filtration available, the lowest long-term cost, and a system that works during power outages.
Before You Buy
- Check your local water quality report to identify specific contaminants
- Look for NSF certification on any filter you consider purchasing
- Factor in ongoing filter replacement costs, not just the initial price
- Consider household size — larger families benefit more from higher-capacity systems
