Mixer Tap washer replacement

[ipbr21054]

Hi,
I am going to replace the washer on my mixer tap.
I have supplied some photos of the item in question.
Ive never seen a washer like this before.
It looks like a top hat ?
The main body of the rubber wash is about 16mm and fits inside the brass section.
Then there is a flat rubber section which i assume makes the seal ?
This section is only about 2mm thick & 18mm diameter.

Can you advise if any of the items are correct for me please.
Item 1
https://www.toolstation.com/delta-tap-washer/p76262

Item 2
https://www.screwfix.com/p/arctic-products-delta-tap-washers-5-pack/6169j

These are listed as 3/4

 

[muggles]

Neither are correct. You need a standard half inch tap washer. It's only wider at the end because someone has been screwing it closed too tight, crushing the washer and squeezing it out at the sides.

 

[ipbr21054]

Thank,
So could you look at these two please.
Not sure if they are different item or are the same but a different make etc ?

https://www.screwfix.com/p/arctic-products-pegler-tap-washers-5-pack/2070j

https://www.screwfix.com/p/arctic-products-holdtite-flat-tap-washers-5-pack/1215j

 

[muggles]

Looks like they've used the same picture for both. I'd go for the Holdtite ones

 

[ipbr21054]

Now done.
When i went to collect them one was much bigger than the other.
I took the smaller washers and worked fine.

I fitted 2070J which measured 16mm diameter

Thanks