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Imperial Super Sterasyl®


The ceramic shell is filled with granular activated carbon, to give superior flow rates in a gravity filter.

Whats in the box?
  • 5" Imperial Super Sterasyl filter
  • Wingnut & Washers
Special Price £15.00 Regular Price £20.00
In stock

The ceramic shell is filled with granular activated carbon, to give superior flow rates in a gravity filter.
Range: BSP Long ( 1 ½" / 38mm) Threaded Mount
Length: 5 inches (127mm) Diameter: 2 ¾ inches (67mm) Weight: 0.296kg
Filter Performance: Micro filtration of Bacteria, Cysts, Particles, Chlorine and Organics. System: Gravity

More Information
4 Digit Code 8356
Filter Type Ceramic Element
Width (mm) 90.00
Depth (mm) 90.00
Diameter (mm) 180.00
Weight KG 0.288000
NSF Certified No
System Category Filter
System Type Portable
WRAS Certified No
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Customer Questions
How do I clean a ceramic filter candle?

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.

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

See how to clean your filter.

Are all ceramic water filters the same?

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.


Download our Filter Performance Table

Does my filter element work with hardness?

Yes, our ON countertop and IN undercounter DUAL systems come with the option of a Limescale specific pre-filter that filters Limescale. Find out more here.

Do I need to sterilise the candle after cleaning?

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

How big are the replacement filters for my British Berkefeld Gravity portable filter system, and what do they filter?

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.


*Tested in-house

Can I recycle my old ceramic filter?

You can recycle the plastic mount and compost the old filter element or use it to help with drainage in the bottom of your plant pots.

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. Find out more here.

Please, mind that only logged in users can submit questions

Shipping options are as follows


Area Cost Time
Mainland UK £6.49 - Orders over £50 free shipping 1-3 working days
Highlands and Islands £9-£15 depending on area see this page for more details 2-4 working days
Western Europe £10-15 depending on area, see this page for more details 3-5 working days
Rest of the World £15-50 depending on area, see this page for more details 4-10 working days