Square 3-functions thermostatic valve, 2 shower heads or simultaneously, Square plate and handles included, 2 square 9-in (22.86 cm) swiveling shower head 1 setting anti-limescale gel nozzles, maximum flow rate of 9.5 L/min (2.5 US gal/min), 2 square 8-in. (20.3 cm) ceiling shower arm X 1/2-inch male with 2 square flanges