Bobrick AirGuard Automatic Hand Dryer, 115V, Surface Mounted. Vitreous Enamel, Cast Iron, White. Unit 13-3/16 in. W, 10-5/16 in. H, 7-1/2 in. D. Hand Dryers should be installed 15 in. above any projection or horizontal surface which may interfere with the operation of the automatic sensor.