
Doulton W9223006 Ultracarb Ceramic Drinking Water Filter 0.2um Imperial 10" (This is not a "9 inch Non-standard" water filter - Please check your system before purchase)
Ultracarb® Imperial OBE
The ceramic shell is fitted with an activated carbon block insert containing lead removal media.
Benefits: Removal of particles, pathogenic bacteria, cysts, etc. with additional chlorine, organics and lead removal capabilities.
Doulton W9223006 Imperial UltraCarb 25cm Replacement Filter
W9223006 OBE Cartridge – plastic mount and rubber washer at both ends.
The Doulton Ultracarb Imperial OBE Ceramic Water Filter is a self-sterilizing with submicron filtration at an economical cost. The Doulton Ultracarb fits Doulton housings as well as any standard water filter housing that requires a standard 9-3/4" x 2-7/8 " cartridge (248mm x 73mm).
The Doulton Ultracarb reduces:
• Taste & Odour
• Chlorine
• Particulate Class I
• Cysts (Cryptosporidium & Giardia) 99.999%
• Turbidity 99.69%
• Lead 98.3%
• Bacteria (E.Coli, Cholera, Shigella, Salmonella) 99%.
The Doulton Ultracarb is a three stage cartridge combing the highly efficient filtration properties of ceramic with the enhanced water treatment properties of activated carbon and the heavy metal reductions capabilities of ion exchange media.
First Stage:
The first stage consists of Doulton Sterasyl - ceramic which provides genuine sub micron filtration. The cartridge reduces fine particulate matter, bacteria, cysts and turbidity. The incorporation of silver locked within the ceramic structure gives enhanced bacteriostatic and self sterilising properties.
Second Stage:
An inner core of activated carbon block removes chlorine and organic compounds.
Imperial Ceramic Filter Element
Operating and Exchange Instructions Ultracarb®
Rated service flow: 1.0 GPM (3.75 l/min)
Capacity: 1000 Gallon (3750 litres)
1.0 Conditioning the Filter Element
Extreme cleanliness is important. Wear rubber gloves or wash hands thoroughly before and after handling the product
General removal and re-installation of the filter element is carried out as follows: (for full detailed instructions see the installation instructions supplied with the filter system)
With the water supply turned off; vent any pressure by opening the user tap
Unscrew the filter body - care must be taken as it will be full of water
The filter element can now be removed and be replaced or cleaned as per instructions in section 4.0
To replace the filter element ensure that all seals are positioned and seals are made
The body can now be screwed into the head. Hand tighten only
2.0 Conditioning the Filter Element
In order to remove any loose particles resulting from the manufacturing process, it is recommended that the first supply of filtered water should be run to waste for 10 minutes or 15 litres
For a new filter element, the maximum flow rate will be achieved once the ceramic filter has become fully saturated, to allow the filter element to be conditioned to the source water allow the unit to stand for 24 hours and then flush for a further 10 mins to waste
The filter is now ready for use
3.0 General Use
The recommended flow rate should be used to give optimum performance. If the filter has been standing unused for 24 hours, two litres of water should be run to waste to ensure that the water is “fresh”
4.0 Cleaning the Filter Element
Due to filtration of particulate contaminants from the water during use, the flow of the water from the filter may reduce over a period of time, depending on the quality of the water.
To restore the water flow to its normal level, simply clean the filter element as follows: Remove the filter element in accordance with the filter system assembly instructions
Hold the filter element in a bowl of water or under running water. To avoid contamination of the open ended plastic threaded mount, take care to ensure that the mount is always clear of the water
NEVER use soap or detergent
Take a soft bristle brush or lightly abrasive pad and cup it around the circumference of the filter element
Apply a gentle pressure with the brush or pad and slowly work down the length of the filter element once, ensuring the cleaning is even over the whole filter element surface
Replace the filter element in accordance with the filter system assembly instructions
The filter is now ready for use
Product Attributes
Weight: 0.626 kg
Part Number: W9223006
Range: OBE Cartridge – plastic mount and rubber washer at both ends
Length: 9 ¾ inches (248mm)
Diameter: 2 ¾ inches (67mm)
Filter Performance: Micro filtration of Bacteria, Cysts, Particles, Chlorine and Organics.
FRANKE: NOT compatible with FRANKE Housings.
System: Pressure

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Compatible Models
Please refer to the product description above for compatible filter numbers, refrigerator models, and system model information.
If you cannot find your model number or are unsure whether this product is suitable for your system, please contact us before purchasing.
Contact Us for Compatibility SupportInstallation Guide
Please use the general guide below to help identify your filter type and follow the correct replacement process. Filter location and replacement steps may vary depending on your refrigerator or water filtration system model. Always refer to your appliance manual for the exact filter location and specific instructions.
Need Help Finding the Correct Filter?
Before ordering, compare your old filter, check the model number or filter code, and confirm the connector type. If you are unsure, please contact Water Filter Distributors for assistance.
Whole House System Installation Manual
For whole house filtration systems, please refer to the detailed installation manual below. Professional installation by a licensed plumber is recommended.
View Whole House Installation ManualTwin Cartridge Under Sink Installation Guide
For twin cartridge under sink systems, please refer to the installation guide below. This guide is suitable for systems supplied with a dedicated faucet, diverter valve, tubing and installation kit.
Important Notes
- Filter location and replacement steps may vary depending on your appliance or system model.
- Flush approximately 5–10 litres or 3–5 minutes of water after installation.
- Use with cold potable water only.
- Check for leaks after installation and reinstall if necessary.
- Always follow your appliance manufacturer's instructions.
Certification & Quality Assurance
Water Filter Distributors is operated by Mexi Trading Pty Ltd, an Australian owned and operated company. Our products are supplied with a strong focus on quality, safety and trusted filtration performance.
Important Certification Notice
- Certification details may vary depending on the specific product model.
- Please refer to the product description, packaging or official documentation for model-specific certification information.
- If you require confirmation for a specific product, please contact Water Filter Distributors before purchasing.