See the thing is, I bought some replacement ones about two years ago (before the original ones failed), which looked the same, but the plastic strap didn’t fit through properly. I’m guessing the straps have got a few mm narrower on newer models too – so that’s put me off in getting anything other than a suitable replacement, unless I can be sure it fits.
It would make sense for them all to just be interchangeable, the mind boggles 🙄 . All about money I guess sadly like most things.