Are they still available if not is there an aftermarket version available.

I have been trying to replace the small piece of pipe that goes from the pressure valve to the 3 way splitter and it has been fighting me all the way as fu##ing usual, soaked it several times in wd40 left it over night and it still wont budge and to make things worse it has started to twist the threaded part of the valve where the female union attaches so I need to get a replacement if they are still available.

"Cosworth's It's a love hate relationship"