Built-in shower multifunction system 15-9/16” RAINFALL/WATERFALL function and chromotherapy effect 1/2” connections Max Flowrate 1.75 GPM with RIR5404 reducer for single exit (to be purchased separately) 2 Flow restriction fitting RIR5404 to be purchasedseparately Electronic parts included with remote watertight control and hook 12V power supply RIR5402 required, not included to be purchased separately Ceiling installation To be complemented by cover 57004