Cheers Mattmog .... something I'm not familiar with .... these are the popular 'yorkshire' fittings in the UK ..... look just the same but have the right amount of solder pre-loaded into the raised ring .... just surface clean the pipe, slip it on and run your blowtorch over it .... I don't think that style of press fit fittings are much used in the uk ( I had to google them) .... something new I've learned.
https://www.pegleryorkshire.co.uk/en/products/capillaryfittingsK
