Ultra Sterasyl (8674) for British Berkefeld Stainless Steel Gravity System

We recommend a gentle, evenly applied buffing with a scouring pad until the whiteness of the ceramic returns.

Rubber gloves are recommended to be used during cleaning and NEVER use soap or detergents. If rubber gloves are not worn, we recommend that you wash your hands before and after servicing the filter.

Ensure that the end of the plastic mount does not come into contact with unfiltered water.

See how to clean your filter.

Absolutely not. Doulton Water Filters are the original ceramic filter manufacturers and a globally trusted brand. We have been updating our groundbreaking filter design since 1826. We are a UK ISO accredited company offering independently and regularly tested water filters. Certifications held with NSF, WRAS, Lucideon and many more.

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Yes, our undercounter Duo systems come with the option of a Limescale specific pre-filter that filters Limescale. Find out more here.

No, there is no need to sterilise the ceramic candle. All our filters have bacteria inhibiting features built in.

To filter bacteria, sediment, rust particles, particles, microplastics*, heavy metals (including lead); pharmaceuticals, oestrogen and chlorine, the filter element is 7” (22cm) tall and 2” (5cm) wide, available here.

*Claims based upon micro test dust filtration testing

You should be able to recycle the plastic mounts* and compost the old filter element or use it to help with drainage in the bottom of your plant pots.

* Check with your local recycling centres the mount is PPO and the adaptor ABS.

We suggest safely removing the mount using light pressure with a hammer to break it from the filter element. Next, cover the ceramic with an old rag and gently break it into small pieces, again using light pressure with a hammer.