The flush-mounted Mr.Steam iTempo Control comes with an Aroma Designer Finish SteamHead, making the steam system seamless and simple to use. It has never been easier to optimize your steam shower experience. Comes with a matching Aroma Designer Finish SteamHead Works with the SteamLinx Module and Mobile App Display lets you program the temperature and get comfortable Easily mount and install your control snug to the wall Dimensions: 5"Diamater (13 cm) x 0.3"D (1 cm) and 4.5"W (11 cm) x 0.3"D (1 cm) x 5"H (13 cm) Aroma Designer Finish SteamHead Has an oil reservoir at the top for essential oils No assembly of moving parts required Dimensions:3"Diamater (8 cm) x 0.9"D (2 cm) and 3"W (8 cm) x 0.9"D (2 cm) x 2.8"H (7 cm) Installation and Operation Manual Aroma Designer Finish SteamHead Installation and Operation Manual Construction Material: Plastic, Metal, Electronics Dimensions (Round): Diameter: 5" (13 cm), Depth: 0.3" (1 cm) Dimensions (Square): Width: 4.5" (11 cm), Depth: 0.3" (1 cm), Height: 5" (13 cm) STEAMHEAD 104515 (RD) / 104516 (SQ) Dimensions (Round): Diameter: 3" (8 cm), Depth: 0.9" (2 cm) Dimensions (Square): Width: 3" (8 cm), Depth: 0.9" (2 cm), Height: 2.8" (7 cm)