96.6
Best for long distance thru-hikers and weight-conscious backpackers
- Removes 99.999999% of bacteria
- Filters up to 100,000 gallons
- Fits standard soda and water bottles
$46
Head to head · Water Filtration
Big Berkey 2.25 Gal Gravity Water Filter System vs RCC7P-AK
Ravvy scores Big Berkey 2.25 Gal Gravity Water Filter System at 89.51 and RCC7P-AK at 92.4. RCC7P-AK takes the overall pick, best for homeowners with low water pressure seeking high-purity water with a balanced ph..
$367
The Big Berkey is the gold standard for independent water filtration, provided you are willing to manage the manual priming process and occasional maintenance of the filter elements.
Ravvy pick
iSpring
RCC7P-AK
92.4
$295
A powerhouse filtration solution for low-pressure environments that trades a bit of under-sink space and an electrical outlet for superior water taste and efficiency.
How they score
| Factor | Big Berkey 2.25 Gal Gravity Water Filter System | RCC7P-AK |
|---|---|---|
| Portability | 85 | – |
| Build Quality | 93.5 | – |
| Long Term Value | 98 | – |
| Filtration Power | 95 | – |
| Setup Difficulty | 70 | – |
| Flavor Profile | – | 95 |
| Water Efficiency | – | 92 |
| Filtration Quality | – | 98 |
| Pressure Performance | – | 96.5 |
| Installation Complexity | – | 78 |
Big Berkey 2.25 Gal Gravity Water Filter System
What owners praise
- Extremely long filter life up to 6000 gallons
- No electricity or plumbing required for operation
- High quality 304 stainless steel construction
- Effective for both tap and raw untreated water
- Significant cost savings over time per gallon
What to know first
- High upfront investment cost
- Filter priming can be tedious for new users
- Slow filtration speed compared to tap systems
- Limited shipping availability in certain US states
Skip it if renters with very limited counter space or residents of california and iowa
RCC7P-AK
What owners praise
- Booster pump ensures high flow even with low incoming pressure
- Alkaline stage restores healthy minerals and improves taste
- Transparent first-stage housing allows for easy visual inspections
- Significantly reduces wastewater compared to non-pumped systems
- Comprehensive 6-stage filtration targets over 1,000 contaminants
What to know first
- Requires an under-sink power outlet for the pump
- The pump adds a slight humming noise during the fill cycle
- Larger footprint than 5-stage systems due to the pump and extra filter
Skip it if renters with limited space or those who prefer a non-electric, silent filtration setup.
Specs side by side
| Spec | Big Berkey 2.25 Gal Gravity Water Filter System | RCC7P-AK |
|---|---|---|
| UPC | 197644669424 | 662425038022 |
| ASIN | B00CYW3EVO | B005LKKMYS |
| GTIN | 197644669424 | 662425038022 |
| Brand | Berkey | iSpring |
| Capacity | 8.5 liters | 75 gallons |
| Material | Stainless Steel | Acrylonitrile Butadiene Styrene, Plastic, Polyethylene, Polypropylene, Polystyrene |
| Brand Name | Berkey | iSpring |
| Model Name | BER-BU2 | Reverse Osmosis System |
| Unit Count | 1 Count | 1 Count |
| Item Weight | 0.27 g | 20 pounds |
| Part Number | BER-BU2 | RCC7P-AK |
| Manufacturer | Berkey | iSpring Water Systems |
Other options in this category
93.7
Membrane Solutions
Personal Water Filter Straw S1 4 Pack Blue
Best for backcountry hikers, international travelers, and disaster preparedness kits
- 0.1 Micron Ultrafiltration
- 5,000 Liter Capacity
- NSF 42, 372, and 401 Certified
$30
93.6
Best for health-conscious families and diy homeowners who dislike the taste of flat ro water
- Alkaline Remineralization Stage
- 75 Gallon Per Day Capacity
- Transparent Sediment Filter Housing
$235