AquaDrive versus PythonDrive

[maxi]

Does anyone have any input please, on the pros & cons of these two flexible couplings.

 

[Stemar]

Don't know anything about those two, but Jissel recently got a Vetus Bullflex. Fitting was dead easy and seems to be doing what it says on the tin. I've got a lot less vibration than with the old one.