Bobrick AirCraft TouchButton Hand Dryer, 115V, Surface Mounted. Vitreous Enamel, Cast Iron, White. Unit 13-3/4 in. W, 10-3/8 in. H, 7-1/4 in. D. Hand Dryers should be installed 38 in. to 40 in. above the finish floor and alternate left- and right-hand apporaches for Barrier-Free Washroom Guidelines.