The mixing nozzle is ok, but the price is just horror

I think it's bad that the already expensive fixtures by Ideal-Standard use even such exotic degree from her mixing nozzles.
At the hardware store costs 3 such nozzles not even 3.00 euros - of course, not with these dimensions - the grant is not there.

As for me, listens to an understanding. The question here is - who deserves the golden nose - the dealer or the manufacturer?