Where can i get an imperial stopcock

[ARMIGER]

I need to replace a 3/4"-1/2" stopcock. A 22mm stopcock will not fit onto the existing old plastic pipe. I cannot find anyone who stocks this old imperial size. Any idea where I can get one or how can I overcome this problem.

[justlead1]

Hi. Try this site, Plasson UK a phone call might get you a local stockist. The supply adapter kits for most situations, There a bit bulky but ok if you have the room and the aesthetics are not a problem. Good luck

[ARMIGER]

the pipe is black. a 22mm stop cock is too big. The existing stop cock is 3/4", I tried a conversion olive but it won't fit over the black pipe.
Any help would be appreciated. Thanks.