Designed to complement any steam shower space, the ThermaSol Legacy steamhead is timeless design engineered for optimal steam dispersion. The ThermaSol Legacy steamhead is a classic brass alloy design with 1/2" or 3/4" NPT connections for compatibility in numerous steam shower setups. Engulf your wellness sanctuary in efficient, reliable steam while the aromatherapy well disperses essential oils for a sensory bathing experience.With easy installation and no required housing kit, the steamhead hasseveral unique finish options to choose from. 1/2-inch dimensions: 2.5" Diameter (6.6 cm) x 2"D (5.1 cm) 3/4-inch dimensions: 2.8" Diameter (7.1 cm) x 2"D (5.1 cm) Designed, engineered and built in the U.S.A. 1/2" Steamhead Diameter:1.375" (3.5 cm) 1/2" Escutcheon Diameter:2.5" (6.6 cm) 3/4" Escutcheon Diameter:2.8" (7.1 cm) 3/4" Steamhead Diameter:1.5" (3.8 cm) Aromatherapy:Internal Reservoir