Three Outlet Thermostatic Concealed Shower Valves are also known as Triple outlet shower valves, 3 Outlet Shower Valves. We have a huge range of Triple Concealed Shower Valves at trade prices. A three-way shower valve will control three outlets for example an overhead shower, a side shower and a bath filler. You will have a choice of handles and designs, each concealed valve will have minimum recess and pressure requirements.