If you've spent any time researching emergency water preparedness, you've encountered the Berkey water filter. With no electricity, no plumbing, and no complicated setup required, it has earned a near-cult following among preppers, homesteaders, and everyday families who simply want the best possible drinking water — emergency or not.
Here's our complete, honest review after years of selling and using Berkey systems.
How the Berkey Works
The Berkey uses a two-stage gravity filtration system. Water pours through the top chamber, passes through Black Berkey purification elements, and drips into the bottom holding chamber — clean and ready to drink. The whole process is powered entirely by gravity. No electricity. No plumbing connection. No moving parts to break.
The Black Berkey elements filter down to 0.1 microns, removing:
- Bacteria (E. coli, salmonella, cholera) — 99.9999%+
- Viruses (MS2, Fr Coliphage) — 99.999%+
- Chlorine, chloramines, and fluoride (with PF-2 add-on filters)
- Heavy metals (lead, arsenic, chromium)
- Pharmaceuticals and VOCs
- Sediment, silt, and cysts
Berkey Size Guide: Which System Is Right for You?
| Model | Capacity | Best For | Gallons/Hour |
|---|---|---|---|
| Travel Berkey | 1.5 gal | 1–2 people, travel | ~1.0 |
| Big Berkey | 2.25 gal | 2–4 people (most popular) | ~3.5 |
| Royal Berkey | 3.25 gal | 2–6 people | ~4.0 |
| Crown Berkey | 6 gal | Groups, families 6+ | ~6.5 |
Our Recommended Berkey Systems
👉 Big Berkey Water Filter System – 2.25 Gallons with Black Berkey Elements — The most popular choice for families of 2–4. Great for countertop or emergency use.
👉 Crown Berkey Water Filter – 6 Gallons — Perfect for larger families or community use during extended emergencies.
👉 Black Berkey Replacement Elements — Each pair filters up to 6,000 gallons. Replace every 3–5 years with normal use.
👉 PF-2 Fluoride & Arsenic Reduction Filters — Add-on filters to remove fluoride, chloramines, and arsenic. Highly recommended.
Is the Berkey Worth the Investment?
Cost per gallon filtered: less than 2 cents. Compared to bottled water at $1–2 per gallon, a Berkey pays for itself within the first year for an average family. And when the municipal water supply fails during an emergency, it's priceless.
The answer is yes — it's worth every dollar.