Need help sourcing a tap cartridge for mains inlet pls

[GusGF]

Our mains inlet tap/stop cock tap is leaking and to replace the whole unit would be a rather awkward job so it seemed quite a lot easier to just remove the cartridge which came out fairly easily. The problem I now have is in finding a replacement cartridge. I popped down to my local screwfix thinking I could just remove the cartridge from a stopcock I bought there. Well no way not budging whatsoever, they seem to be not serviceable. So I tried searching for a replacement cartridge but got nowhere as whatever I turned up was the wrong size. (See photos attached)

I will be popping into the plumbing specialist stores in town later this week and I'm sure they'll have something but it would be great to have a better idea of what I should be looking for. Incidentally Southern Water recently removed our water meter which was next to the tap and we've now got a meter in the street.

 

[HERTS P&D]

Where is it leaking from?

Andy

 

[GusGF]

Sorry should have said. It's leaking from where the spindle goes into the body of the cartridge. The rubber washer at the bottom isn't in great shape either. When I wiped it with a paper towel a lot of black came off. Not great as we drink this water.

 

[jj4091]

You have got that far you might as well replace the tap https://www.screwfix.com/p/flomasta-poly-stop-cock-20mm-x-15mm/98486 or which ever size you have.

 

[HERTS P&D]

Andy

 

[GusGF]

Thank you Andy. I didn't know any of this so this will be invaluable if I can't find a replacement.

Love at the end of the video how the cartridge detached so easily from the body of the tap. No way mines budging