Thanks for the walk through 😊

Thanks this is super helpful.

Whats the grey extention piece called?

Does anyone have an issue with odor? Since we installed the Toto there has been a decline in air quality. We’ve tried washing the bidet seat regularly but that hasn’t helped. Now wondering if the wax ring or the rubber connection under the tank were not installed properly. But then I should be seeing some waste leak from under, I assume.

Are they all plug in ones?