SKU: 40348310287

Doulton Ultracarb Water Treatment Cartridge (To fit under sink or inline systems only)

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Description

Doulton Ultracarb Water Treatment Cartridge (To fit under sink or inline systems only)Doulton Ultracarb Replacement Filter Suitable for use with Stainless Steel Countertop System Only Replacement Doulton Supersterasyl Ceramic Filter These genuine filters are made in England and will filter absolute to 0. 9 microns. These Premium filters needs to be replaced every 2300 litres of water filtered. Higher levels of chlorine, chemical contamination, or sediment, will slightly shorten the life of the filters. Recommended for use on town, tank

Doulton Ultracarb Replacement Filter Suitable for use with Stainless Steel Countertop System Only

Replacement Doulton Supersterasyl Ceramic Filter 

These genuine filters are made in England and will filter absolute to 0.9 microns.  

These Premium filters needs to be replaced every 2300 litres of water filtered.

Higher levels of chlorine, chemical contamination, or sediment, will slightly shorten the life of the filters.

Recommended for use on town, tank or alternative water supply. 

Silver impregnated ceramic walls makes these filters superior to other ceramic filters.  

Laboratory Test results show these filters are very efficient at removing impurities such as chlorine, bacteria, amoebas, suspended solids, organic pesticides, some heavy metals, bad tastes and smells. They will remove 99.99% of Giardia and Cryptosporidium. 

Doulton Ceramic Candles and Cartridge Grades

Supersterasyl membrane: (candle and cartridge form): Used for microbiological removal. The only ceramic element in the world to meet the stringent NSF antimony and arsenic extraction test featuring:

  • >99.99% E.coli removal
  • Tested with live Cryptosporidium cyst to 100% removal far exceeding EPA three log cyst reduction requirements
  • 100% efficiency at 0.9 µm absolute (0.5 µm absolute ANSI standard)
  • > 98% efficiency at 0.2 µm
  • > 90% efficiency at 0.05 µm

Doulton's Extensive Development Laboratories are continually setting new standards in water quality throughout the world. Their commitment to quality has been demonstrated by achieving ISO 9002* certification, tested and approved by:

  • The British Standard 5750
  • The World Health Organization
  • Department of Health (Toronto, Ontario)
  • Water Research Council (London, England)
  • University of Arizona (USA)
  • Spectrum Labs (Minneapolis, USA)
  • WRC (Buckingham Shire, England)
  • National Sanitation Foundation (Standards 42 & 53, USA)
  • Hyder Labs, Cheshire England
  • Loughborough University, England
  • Thresh, Beale & Suckling Laboratories, England.
  • Clare Microbiological Laboratories, England
  • Severn Trent Laboratories, England
  • And Many Other Independent Laboratories Worldwide

* ISO, based in Switzerland, is an international agency that set standards for product manufacturing procedures and processes. Doulton is an ISO 9000 accredited company. As such, it undergoes regular audits by this authority in order to retain its accreditation. Doulton customers throughout the world, are therefore guaranteed a consistent supply of first class, quality assured products.

Over a million units sell each year in over 150 countries around the globe, where Doulton is a household name synonymous with clean, healthy drinking water.

Consider the rest then go with the best!

Doulton Filter History

You may associate the name of Royal Doulton with fine tableware and figurines, but do you know how they came to have the word "Royal" associated with their name?

As early as 1827, Henry Doulton developed a ceramic filter to remove bacteria from the contaminated Thames River, to provide safe drinking water. In 1835 Doulton made a gravity fed stoneware water system combined with the ceramic filter, for use by the royal household. By 1862 with the advancement in microbiology Doulton created micro porous ceramic filters capable of removing more than 99% of bacteria.

The tiny pores of the ceramic filter known as depth filtration, make it extremely efficient at removing particulate matter and fine sediment. The tightly packed activated carbon will remove taste, odours and unwanted impurities through a process called adsorption. The ceramic wall of this filter has been impregnated with silver ions to prevent the growth of bacteria in the filter itself and also in the stored water. (The silver is not painted on the inside of the walls like other filters and will not disperse into the filtered water or wear out in 6 months.) Since the beginning of the century Royal Doulton has been a leading name in water filtration, world renowned for high guality and reliability.

For their achievements made in water filtration, Doulton was given the right to use 'Royal' in their name in 1902.

How Activated Carbon Works to Filter Your Water

Activated carbon or AC, works by attracting and holding certain chemicals as water passes through it. AC is a highly porous material, therefore it has an extremely high surface area for contaminant adsorption.( Adsorption is the phenomenon whereby molecules adhere to a surface with which they come in contact with. When water containing soluble organic materials comes into contact with the granular activated carbon it selectively removes these materials by adsorption.)  
AC is made of tiny clusters of carbon atoms stacked upon one another. The carbon source is a variety of materials such as peanut and coconut shells or coal. the raw carbon source is slowly heated in the absence of air to produce a high carbon material. The carbon is activated by passing oxidizing gases through the material at extremely high temperatures. The activation process produces the pores that result in such a high adsorptive rate.

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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 40348310287

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K
Verified Purchase
Kyle K.
San Leandro, US
★★★★★ 5
iPad case
Color: Navy Blue
Great case, functions well and the keyboard is a nice touch. Would recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
C
Verified Purchase
C. Coleman
Massapequa, US
★★★★★ 5
Quality Case
Color: Pink
This is an All in Pne case. I really like the lavender color with sparkles. It is a little heavier than expected but I still love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
A
Verified Purchase
Amazon Customer
Houston, US
★★★★★ 3
Ok, but don’t use hand cream
Color: Black, Color: Black
I like the case for its ability to house the keyboard, the pencil and the iPad in one convenient place. I find that the magnetic closure and magnets holding the keyboard are not as strong as a previous case I had purchased. The keyboard is great, I like the touchpad and the backlight colors. The cover material is not hand lotion friendly! I’ve tried water and lens cleaning wipes, and neither gets this cover clean. I hesitate to use any chemicals because the material is the type that will get sticky and nasty, and I don’t like that. I’ve included a photo of what the cover looks like after using a lens cleaning wipe. If the magnets were stronger and the cover material easier to clean, I would buy again.
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Reviewed in the United States on February 27, 2026
S
Verified Purchase
Seth Walton
Alexandria, US
★★★★★ 4
great case!
Color: Navy Blue
pros; the color is beautiful. I picked the navy blue. It is exactly as the description described. It goes very well with my blue iPad. The size is very precise and fits perfectly on my iPad. The magnet that holds the case together is very strong. The iPad itself can pivot vertically and horizontally using that magnet. This works very smooth. The magnet closure for the case itself is strong and holds well. The magnet that holds the keyboard in place also works very well. Cons; when the keyboard is in its correct position, it is difficult to angle the iPad in front into the provided grooves. The keyboard gets into the way. This prevents the iPad from reaching the grooves provided. The keyboard feels very light and cheap. The keyboard itself connected with the Bluetooth very easily. It works wonderful. I love the back light on the keyboard. The color of the keyboard is wonderful. However, as I said above, it does feel a bit cheap. But for 20 bucks, what can you ask for. When the case is folded together with the keyboard in the iPad, it is a bit bulky. But I knew that from the previous reviews and was expecting it. What I love most about this case is that the iPad can be removed using the magnet on the back from the keyboard portion, but it is still protected by the exterior plastic case. So in situations where I don’t need to use my keyboard, I can remove the iPad itself and know that it’s still protected overall I recommend this product.
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Reviewed in the United States on January 18, 2026
A
Verified Purchase
Amazon Customer
Whiting, US
★★★★★ 5
Nice Case & Keyboard
Color: Blue
Love this case with a keyboard. I like using the keyboard vs using one on the screen of iPad. And the keyboard has rechargeable batteries instead of having to buy batteries. And it protects my iPad.
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Reviewed in the United States on May 20, 2026

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