Rozin Rain Waterfall Shower Panel Tub Faucet + Massage Sprays + Handheld Shower Stainless Steel Quickly install the unit by plumbing through the wall to your existing hot and cold supply lines, mounting the brackets and hanging the hand shower 5 Stage Functions (Rainfall, Waterfall, 2-Water-Model Massage Sprays,Tub Spout and Hand Shower) Every part inside panel was connected properly,with two water supply lines All Functions Work Independently to Ensure Proper Water Pressure Rozin provides any replacement in future use,so contact unhesitatingly once you have any problem