Shower System Water Line Connection Type: 1/2" FIP, Material: 304 stainless steel body. Copper shower faucet and PVC water pipe constitute the waterway. The shower panel tower allows you to turn 2 of them on at same time if you so desire. The key is water pressure. Water flow 1.8GPM at 80PsiLuxury shower panel has built-in LED temperature display, LED overhead rainfall showerhead, adjustable high-powered body massage jets, tub spout, and high-efficiency multi-function handheld shower wandMulti-outlet Switches which controls Multiple Combinations water effects, with 4 Adjustable Jets nozzles for Power Mist Massage and 3-Setting Handheld Shower FixturesShower panel allows you to turn 2 of them on at same time if you so desire, the key is water pressure, Copper shower faucet and PVC water pipe constitute the waterway