Art Deco/Vintage looking under dash hot water heater. Across the face is 10-1/2" (outside of chrome trim) Height is 9-1/4" (outside of chrome trim) Round finned area is 7-5/8" Fins to the mounting holes at the back is 8-1/2" Tubes are 5/8"OD and 4-1/2" center to center 2 Vent plugs are 180Deg. apart so you can mount it vertical or horizontal. $100 or best offer, buyer pays for shipping.