... connect.special note,it is large water flowing type thermostatic valve , suitable in low water pressure ,when in big pressure ... 15 degrees"environmentally friendly"silicon jetsChrome plated solid brassshower arm featureschrome plated solid brass1/2' thread can coonect any ... .many shower parts include shower head ,massage jet ,shower arm ,hand shower ,shower rail ,elbow bath spout...... for choose ...