The Doulton W9121226 7-inch Ultra Sterasyl (Formerly ATC Super Sterasyl) ‘Gravity-Fed’ Ceramic Filter Candle features the combination of a microfilter ceramic outer, granular activated carbon and heavy metal removal media to effectively reduce a range of contaminants including bacteria, chlorine, pharmaceuticals, PFAS, microplastics, and heavy metals such as lead. The candle design features a domed end and a plastic-mounted top, for a perfect match every time in your British Berkefeld Doulton or other brands of gravity-fed countertop water filter systems. Retains health-giving minerals that are naturally present in your water. Reliable, fresh, clean to taste and easy to use for all the family.
Ceramic Filter Benefits
Ceramic filters use the natural small pore size of their material to filter contaminants out of your water, Doulton has combined ceramic filter methods with advanced media options like granular activated carbon and heavy metal reduction media to provide filter candles that reduce a wide range of contaminants from your water.
The Doulton Difference
Doulton has been a manufacturer and provider of quality water filters and filter systems since 1826. The company is well known for its range of gravity-fed filter systems and ceramic filter options, distributing ceramic filtration solutions to 140 countries across the globe. Using naturally-occurring raw materials in its filters Doulton actively promotes environmentally-friendly filtration options designed to provide clean drinking water to all of its users.
Frequently Asked Questions
What is the Doulton W9121226 British Berkefeld filter and what system does it fit?
The Doulton W9121226 is a genuine British Berkefeld Super Sterasyl ceramic candle filter designed specifically for British Berkefeld gravity-fed stainless steel countertop water filtration systems. Each pack contains 2 ceramic candles with a 7-inch length and standard 1/4″ BSP threaded mount, making them the authentic OEM replacement for British Berkefeld housings. They are not compatible with Berkey-branded systems.
What is the micron rating of the Doulton W9121226 and what contaminants does it remove?
The Doulton W9121226 Super Sterasyl features an absolute micron rating of 0.9 microns and a nominal rating of 0.5 microns. Its multi-stage ceramic shell with activated carbon core reduces up to 99.99% of pathogenic bacteria (E. coli, Cholera, Salmonella, Shigella), cysts (Cryptosporidium, Giardia), sediment, turbidity, rust, and particulates. The silver-impregnated ceramic provides bacteriostatic protection, while the internal activated carbon block reduces chlorine, bad taste, and odors.
Is the Doulton W9121226 British Berkefeld filter NSF certified?
Yes. The Doulton Super Sterasyl ceramic element used in the W9121226 is independently tested and certified to NSF/ANSI Standard 42 for aesthetic effects (chlorine, taste, and odor reduction) and tested against NSF/ANSI Standard 53 protocols for cyst reduction. Doulton ceramics are also manufactured in an ISO 9001 certified facility in the United Kingdom.
How long does the Doulton W9121226 last before replacement?
Each Doulton W9121226 Super Sterasyl candle has a filtration life of approximately 6 months or 1,500 liters (around 400 gallons) per candle under normal use conditions. Since the pack contains 2 candles, a typical British Berkefeld 2-candle system provides up to 800 gallons total before replacement is needed. The ceramic shell is also cleanable — simply scrub the exterior under running water with a Scotch-Brite pad to restore flow rate and extend usable life.
How do I install and prime the Doulton W9121226 ceramic candles?
Before first use, flush each W9121226 candle under cold tap water for 1-2 minutes to remove ceramic dust. Install each candle into the upper chamber of your British Berkefeld system using the included wing nut, ensuring the rubber sealing washer sits flush against the chamber base — do not overtighten. Discard the first full chamber of filtered water to fully prime the system. Your British Berkefeld is then ready to deliver purified drinking water.
