British Berkefeld
Score: 88/100
Waken Electric C11S
Score: 86/100Rankings
The British Berkefeld gravity water filter is a high-performance, portable filtration unit designed for comprehensive contaminant reduction without electricity. It stands out for its rare NSF 372 lead-free certification and broad spectrum of verified health effect standards. While the initial setup and ongoing filter costs are higher, it is ideal for users prioritizing verified safety and portability.
The Waken Electric C11S is a countertop RO system featuring an 8-stage filtration process with UV sterilization and a digital TDS display. It offers a highly efficient 4:1 water ratio and fast dispensing, making it ideal for renters. While the tank capacity is modest, the comprehensive filtration and monitoring features make it a strong choice for quality-conscious users.
| Attribute | | |
|---|---|---|
9 months | 18 monthsbest | |
1.25 gallons per hour | 418 gallons per hourbest | |
— | 90 %best | |
2.1 gallonsbest | 1.41 gallons | |
3 stages | 8 stagesbest | |
19.25 inchesbest | 15.04 inches | |
8.5 inches | 18.3 inchesbest | |
8.5 inchesbest | 7.28 inches |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance & Filtration(6) | ||
Certifications | NSF 42, 53, 372, 401 | NSF/ANSI 58, 372, EPA 200, SGS, FCC |
Contaminants Reduced | Bacteria, chlorine, lead, sediment, microplastics, trace organics, enhanced organics, pharmaceuticals, PFAS, VOCs | 90%+ TDS, Heavy Metals, Impurities |
Filtration Technology | Micro-porous ceramic with GAC | Reverse Osmosis with UV |
Filter Lifespan (months) | 9 months | 18 months |
Flow Rate (gallons per hour) | 1.25 gallons per hour | 418 gallons per hour |
Filtration Stages (stages) | 3 stages | 8 stages |
Capacity & Dimensions(5) | ||
Water Capacity (gallons) | 2.1 gallons | 1.41 gallons |
Height (inches) | 19.25 inches | 15.04 inches |
Width (inches) | 8.5 inches | 18.3 inches |
Depth (inches) | 8.5 inches | 7.28 inches |
Product Weight (pounds) | 7.3 pounds | pounds |
Design & Installation(4) | ||
Installation Type | Countertop / Gravity | Countertop |
Housing Material | Stainless Steel | Plastic |
Filter Type | Ceramic Candle | Composite/RO |
Power Requirement | None | Electric |
Products in the top-left offer the best value (high score, low price).
Professional reviewers highlight the British Berkefeld system's superior certification profile, specifically noting its NSF 372 lead-free certification which is rare for stainless steel gravity filters. Independent lab testing confirmed its effectiveness under real-world conditions.
Everyday users commonly praise the system for its effective taste and odor improvement, improved water clarity, and the convenience of pre-installed filters. However, recurring concerns include the initial activation process and regular replacement costs.
Professional reviewers highlight the system's exceptional water purification efficiency and convenience. The 8-stage filtration system with UV lighting and the use of premium Sri Lankan coconut shell activated carbon are specifically praised for their effectiveness in removing impurities. Reviewers emphasize the 4:1 pure-to-drain ratio as a major advantage in the countertop RO market, noting it significantly reduces water waste compared to standard models.
Users appreciate the immediate access to clean-tasting water without complicated setup. The quick 14-second dispensing time is frequently mentioned as convenient for daily use. Users report satisfaction with the visual filter status indicators, which clearly show when replacement is needed. The portability and lack of installation requirements receive strong praise from renters and apartment dwellers.
