DOULTON W9121226
British Berkefeld Doulton 8674 Ultra Sterasyl Zeramikazko Iragazki Kandelaren Erabiltzaile Eskuliburua
Eredua: W9121226
Sarrera
This manual provides essential information for the installation, operation, and maintenance of your British Berkefeld Doulton 8674 Ultra Sterasyl Ceramic Filter Candles. These filter candles are designed for use with compatible countertop gravity water filter systems to provide clean and safe drinking water.

Image: A pack of four British Berkefeld Doulton Ultra Sterasyl Ceramic Filter Candles, shown upright with their black threaded tops.
The Doulton Ultra Sterasyl filter candle is engineered for high-performance filtration, effectively reducing impurities to ensure fresh-tasting and odor-free water. Each 7-inch ceramic filter element is built for durability and extended usage.
Konfigurazioa eta Instalazioa
These filter candles are specifically designed for British Berkefeld countertop gravity water filter systems. Ensure your system is clean and ready for new filter installation.
- Deskonprimitu iragazkiak: Carefully remove the filter candles from their packaging.
- Prepare System: Disassemble the upper chamber of your gravity filter system.
- Txertatu iragazkiak: Insert the threaded stem of each filter candle through the holes in the base of the upper chamber.
- Secure Filters: Attach the wing nuts (or similar fasteners, if provided with your system) onto the threaded stems from inside the upper chamber. Hand-tighten to create a secure seal, but do not overtighten.
- Hasierako prestaketa: After installation, it is essential to prime the filters. Fill the upper chamber with water and allow it to filter through completely. Discard the first two full cycles of filtered water. This process saturates the ceramic and carbon, removing any manufacturing dust and preparing the filters for optimal performance. The initial filtration rate may be slow during priming.
- Muntatzeko sistema: Reassemble your gravity filter system, ensuring all connections are secure.

Image: A hand pouring water into the top chamber of a stainless steel gravity water filter system, with a white ceramic filter candle visible inside.

Irudia: Gertutik view showing the top of a white ceramic filter candle securely installed within the upper chamber of a water filtration system.
Funtzionamendu-argibideak
Once installed and primed, your Doulton Ultra Sterasyl filter candles will begin purifying water as it passes through the gravity system.
- Sistema betetzea: Pour untreated water into the upper chamber of your gravity filter system.
- Iragazketa prozesua: Water will slowly pass through the ceramic filter candles into the lower chamber, where it is stored as purified drinking water.
- Uraren kalitatea: These filters are designed to effectively remove impurities such as bacteria, cysts, sediment, and chlorine, providing clean and safe drinking water.

Image: A diagram showing a cross-section of an Ultra Sterasyl filter, detailing its ability to remove 99% of chlorine, eliminate odor, and reduce bacteria, cysts, microplastics, PFAS, lead, pharmaceuticals, and trace organics.

Image: A diagram illustrating a stainless steel gravity water filter system with an Ultra Sterasyl filter, highlighting its long-lasting nature (6 months per filter), ease of use (no plumbing or electricity), and ability to retain natural minerals while reducing lead, bacteria, organics, pharmaceuticals, microplastics, and PFAS.
Mantentzea
Regular cleaning and timely replacement are crucial for maintaining the performance and longevity of your filter candles.
- Garbiketa: We recommend gently buffing the ceramic filter candle with a scouring pad under running water until the whiteness of the ceramic returns. Rubber gloves are recommended during cleaning. Never use soap or detergents, as these can clog the filter pores. Ensure that the end of the plastic mount does not come into contact with unfiltered water during cleaning.
- Ordezkoa: Filter candles should be replaced periodically, typically every 6 months, depending on water quality and usage, or when the flow rate significantly decreases after cleaning.

Image: A graphic displaying frequently asked questions about Doulton Water Filters, including how to clean a ceramic filter candle, how to recycle old ceramic filters, and whether all ceramic water filters are the same.
Arazoak konpontzea
- Slow Filtration Rate:
- If the flow rate is slow immediately after installation, ensure the filters have been properly primed by discarding the first two batches of filtered water.
- If the flow rate decreases over time, the filter candles may be clogged with sediment. Refer to the 'Maintenance' section for cleaning instructions.
- Zapore edo usain desatsegina:
- Ensure the filters are correctly installed and sealed.
- If the taste or odor persists after cleaning, the filters may have reached the end of their service life and require replacement.
- Recycling Old Filters: You can recycle the plastic mount and compost the old filter element. Alternatively, use the old filter element for drainage in the bottom of plant pots. To dispose of the ceramic, safely remove the mount, then cover the ceramic with an old rag and gently break it into small pieces using light pressure with a hammer.
Zehaztapenak
| Marka | DOULTON |
| Modelo zenbakia | W9121226 (8674 Ultra Sterasyl) |
| Materiala | Zeramika |
| Produktuaren neurriak | Approximately 3"D x 3"W x 7"H (for a single candle, 15"H likely refers to packaging) |
| Elementuaren pisua | 2.36 libera (4ko paketearentzat) |
| Unitate kopurua | 4 zenbaketa |
| Kanpoko Proba Ziurtagiria | NSF |
| Produktuaren Abantailak | Effective removal of impurities for clean and safe drinking water, reduces bacteria, cysts, sediment, chlorine, microplastics, PFAS, lead, pharmaceuticals, and trace organics. Retains natural minerals. |

Image: A comparison graphic showing the differences between Ultra Sterasyl and Ultra Fluoride filters. Ultra Sterasyl reduces bad taste/odor from chlorine, lead, bacteria, PFAS, pharmaceuticals, and pesticides. Ultra Fluoride reduces bad taste/odor from chlorine, lead, bacteria, heavy metals, and fluoride.
Bermea eta Laguntza
For specific warranty information, please refer to the documentation included with your original purchase or visit the official Doulton website. Doulton Water Filters are manufactured in Britain and are a globally-trusted brand, offering independently and regularly-tested water filters with certifications such as NSF, WRAS, and Lucideon.
For further assistance or inquiries, please contact Doulton customer support through their official channels. You can find more information and contact details on the Doulton Store on Amazon edo haien ofiziala webgunea.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.