I'm not sure if I'm right on this. I took these pictures in 2011 and it's not like anything I've worked on recently.
Not too many tanks have a push button on the side and have the fill tube placed into a channel in the tank for bowl refill.
Check out the bowl refill here.
Not too many tanks have a push button on the side and have the fill tube placed into a channel in the tank for bowl refill.


Check out the bowl refill here.