
British Berkefeld W9361137
Score: 88/100
SimPure Y7P
Score: 88/100Rankings

The British Berkefeld Doulton W9361137 is a premium gravity-fed countertop system featuring high-grade stainless steel and certified Ultra Sterasyl ceramic filters. It offers excellent contaminant reduction and portability, though the filtration speed is slower than some competitors. It is best suited for families and off-grid users who prioritize certified safety and durability over speed.

The SimPure Y7P-BW is a high-efficiency countertop RO system featuring UV sterilization and a superior 4:1 water recycling ratio. While it offers fast dispensing and excellent contaminant removal, it lacks comprehensive independent certification for all claims and has a plastic build. It is best suited for renters and eco-conscious users who prioritize water savings and ease of use.
| Attribute | ![]() | ![]() |
|---|---|---|
6 monthsbest | 6 monthsbest | |
4 gallons per hour | 418 gallons per hourbest | |
— | 98.64 %best | |
3.17 gallonsbest | 1.3 gallons | |
1 stages | 5 stagesbest | |
23.62 inchesbest | 16.1 inches | |
9.5 inchesbest | 7.49 inches | |
9.5 inches | 17.3 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance & Filtration(5) | ||
Certifications | NSF/ANSI 42, 53, 372, 401 | NSF/ANSI 58, EPA 537, SGS |
Contaminants Reduced | Chlorine, organics, cysts, pathogens | 1000+ contaminants including heavy metals, PFAS, microbes |
Filtration Technology | Gravity-fed | Reverse Osmosis with UV |
Flow Rate (gallons per hour) | 4 gallons per hour | 418 gallons per hour |
Filtration Stages (stages) | 1 stages | 5 stages |
Capacity & Dimensions(5) | ||
Water Capacity (gallons) | 3.17 gallons | 1.3 gallons |
Height (inches) | 23.62 inches | 16.1 inches |
Width (inches) | 9.5 inches | 7.49 inches |
Depth (inches) | 9.5 inches | 17.3 inches |
Product Weight (pounds) | 11 pounds | 18.0 pounds |
Design & Installation(3) | ||
Housing Material | Stainless Steel | Plastic/ABS |
Filter Type | Ceramic | 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 W9361137 for its exceptional build quality, superior NSF certifications, and cost-effective operation at $0.09 per gallon.
No specific consumer sentiment data or user quotes were provided in the source material.




Professional reviewers praise the SimPure Y7P-BW for its superior water efficiency and effective UV sterilization, noting it stands out among countertop RO systems for its 4:1 ratio and chemical-free microbe removal. However, experts deduct points for the lack of comprehensive independent NSF/ANSI certifications for all claimed contaminants and cite design issues related to rear tank access.
Everyday users generally praise the product for its ease of use, improved water taste, and the convenience of not needing plumbing installation. Common themes include appreciation for the water savings and the reduction in plastic bottle usage. Recurring complaints focus on potential difficulties with accessing rear tanks and skepticism regarding the breadth of certification claims for contaminant removal.