Below you'll find replacement water filter cartridges for our Moby and Doby mains water filters.
If you can't find the water filter cartridge you're looking for then either call us on 01352 838 281 or send us a message through our help desk.
We recommend you change the o-ring every couple of years, so if you haven't changed it recently just select o-rings from the drop down menu on each product below. See below for 'Why do I need to change the o-ring?'
Free standard postage for all deliveries within the UK.
You can put used cartridges in your household recycling bin.
You can tell if the seals start leaking, which is obvious, we know.
Even if there are no leaks you may find that the profile of the O ring becomes flattened because of prolonged time under compression. The cross section should be round and if it's not it may not seal easily.
However, we recommend that you replace the O rings every two or three years as a precautionary measure.
One of the main reasons for changing O rings periodically is that as they age and compress, the housing bowl needs to be tightened excessively. That leads to difficulty loosening the bowl from the cap next time the cartridge needs to be replaced.
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