Bath/shower control with hotter water bypass?
I'm looking for a faucet / bath / shower control that I thought I saw a long time ago that had a feature that allowed a user to run hotter water than was normally allowed.
So a parent could run a hotter bath for themselves, but a child would be unable to do so.
Now, when I search for the item, I can't find one. Can anyone point me to where this item might be found?