Can I get these PVC plumbing parts in the UK? 4" closet flange & cleanout adapter with plug

[AVR2]

I'm looking for a closet/toilet flange with test cap and a 4" cleanout adapter with plug (it's to build a smoke machine).

They seem to be cheaply and easily available in the USA, but over here, just looking online, I can only find the cleanout adapter for about £22 on Amazon, and only with a 10-day lead time. I can't see anything at Screwfix or B&Q, but maybe I'm using the wrong search terms - are they called something different over here?

Or should I be able to get them over the counter at a proper specialist plumbing suppliers?

 

[Justin Passing]

Dunno, but Try BES.co.uk. Or Polypipe, Terrain, Marley etc.

 

[AVR2]

Sorry, it's not clear what your "dunno" actually refers to. Are you saying you don't know if those parts are even available in the UK? Or if they're called something different over here?