Hansgrohe 28411001 Raindance Rainfall AIR 240 Trim, Chrome Requires three supply lines and proper valves: Must purchase iBox Universal Plus- part # 01850181 (sold separately) for installation Features conical nuts at both ends to prevent twisting Fits all hand showers with 1/2-Inch connections Preferred iBox Basic set (part #06428181) highly recommended: iBox Thermostatic Valve, Volume Control Valve and Diverter Valve Included Component(s): Rough Quattro Green 3-Way Diverter (no shared function) (# 15936181)