GROHE introduces GrohFlex, a new universal valve system that accommodates the full spectrum of shower applications from a basic tub-shower setup to a multi-function, custom shower. The core element of GrohFlex is a one-size-fits-all, rough-in box that will fit the portfolio of GrohFlex Bath Solution Kits, which include trim coupled with an integral four-port control module valve, including service stops. Connections to the hot and cold 1/2” water supplies and the outlets are made via the installation box. The Bath Solution Kit is “plugged into” the rough-in box to complete the trim installation.