Kayfun/Russian replacement top orings?

[eda123]

Hi all,

Ive had a hard time with these when using acidic juices. Ive been through two orings, and now im on my last. I dont want to buy yet another full replacement part kit(s) just for the oring. Has anyone had luck sourcing these parts to buy separately?

Thanks!

 

[cthulhufan]

Hardware stores usually have a good selection.

 

[eda123]

Yes thanks- but looking mainly to see what people have found and tried with success, from online orders.

 

[eda123]

Reason im looking for this exact experience is that i see a few suggestions when searching this forum, and some suggestions conflict with others as far as dimensions. So i want to know who has been able to find replacements in bulk AND has successfully tested them out in a Kayfun.