I am doing bathroom renovation and need to install main shut-off valves for the apartment. Previous owner just have two shut-off valves sticking out of the wall below tub spout which is ugly. The plumber said he can move them to be under the sink.
As the space is limited under the sink, I am thinking is there a valve that with a single switch and can shut off both hot and cold water? Anyway if I ever want to shut off the water supply to the apartment I would like to do that for both hot and cold water instead of just one of them.