After confirmatory advice form the group ... I bought some 22 flexyconnectors for a new bath install.
I have noticed that although they are 3/4" versions with 22mm push fit connectors on the free end ... the hole thought the fitting is much less than 22mm, in fact it's probably around 10mm.
So although they will fit 3/4" taps and they have a 22mm feed they will seriously reduce flow ... are they all like this or do I need to look for other makes.
Rick