Kohler K-304 Guía De Instalación Y Cuidado página 9

Cold Supply
3. Back-To-Back Installation
NOTICE: Do not install the valve body upside down.
Route the supplies and install the valves. Refer to the roughing-in
illustration for your installation.
NOTE: One valve will have reversed supply connections, hot
supply to "COLD" inlet and cold supply to "HOT" inlet.
Connect the water supplies as shown. Use sealant tape on all
threaded connections.
Install 2x4 bracing behind the plate (not shown).
Kohler Co.
Hot Supply
Reversed
Valve
9 1110626-2-J