Gravity & Carbon Units
Big Berkey Gravity System
The benchmark gravity system
- 8.9/10 How we scored
- $350–$400 Checked Jun 2026; not a promise
- Emergency prep and off-grid households
Marketplace prices change often — verify the latest price before buying.
Evidence
| Format | Pitcher & gravity |
|---|---|
| Listed output / capacity | 2.25 gallons |
| Install | None — gravity |
| Seller-listed certification | None listed by seller |
| Replacement interval | ~6,000 gallons (pair) |
| Price band | Under $500 (seller's listed price: $350–$400) |
| What we did not test | HU did not lab-test this unit. No contaminant-reduction, output, or durability result on this page is an HU measurement. |
Our review
Element life is exceptional — a pair handles roughly 6,000 gallons — and the stainless build lasts for years. It needs counter space and manual refills, but as resilient, no-infrastructure filtration it's a benchmark.
Pros
- No power or plumbing — works anywhere
- Very long element life
Limits
- Counter space required
- Manual refilling
- Brand has had supply fluctuations
The HU recommendation
Our default emergency-prep recommendation. Buy the extra pair of elements to double throughput for a family.
Reorder filters
Matching cartridges listed for this brand. Confirm fit with your exact model before ordering.
- Black Berkey Replacement Elements
Replacement filter
Black Berkey Replacement Elements8.8/10 HU score · ~$267 (pair, third-party seller on Amazon) listed
ReferralEditor's referral. We may earn a commission; the seller fulfills the order. How we make money · Disclosure
Accessories
Bottle & accessory
HM Digital TDS-EZ Water Tester8.5/10 HU score · ~$15 listed
ReferralEditor's referral. We may earn a commission; the seller fulfills the order. How we make money · Disclosure
- Universal 10" Sediment Pre-Filter (6-Pack)
Replacement filter
Universal 10" Sediment Pre-Filter (6-Pack)8.3/10 HU score · ~$25 (6-pack) listed
ReferralEditor's referral. We may earn a commission; the seller fulfills the order. How we make money · Disclosure
- Spout Always Fresh Pitcher
Bottle & accessory
Spout Always Fresh Pitcher9/10 HU score · $99 listed
ReferralEditor's referral. We may earn a commission; the seller fulfills the order. How we make money · Disclosure
Compare this
Compare all three in a table- Big Berkey Gravity System
Pitcher & gravity
Big Berkey Gravity System8.9/10 HU score · $350–$400 listed
ReferralEditor's referral. We may earn a commission; the seller fulfills the order. How we make money · Disclosure
- Clearly Filtered Pitcher
Pitcher & gravity
Clearly Filtered Pitcher8.7/10 HU score · $90–$120 listed
ReferralEditor's referral. We may earn a commission; the seller fulfills the order. How we make money · Disclosure
- Boroux Legacy Gravity Filter
Pitcher & gravity
Boroux Legacy Gravity Filter8.5/10 HU score · $300–$380 listed
ReferralEditor's referral. We may earn a commission; the seller fulfills the order. How we make money · Disclosure
Sources
- Berkey manufacturer documentation · specifications as listed by the seller; HU did not independently verify
For information about product claims, water quality, and shopping links, please refer to our Product Information Disclaimer.