20,000 Compact BTU Auxiliary Heater with Thru the Floor Connections Truck Bus Van Perfect for Bus, Truck or Van with One-Year Warranty Includes: Heater, Mounting Brackets, Installation Kit, Instruction Sheet Measures: 9 1/2" X 6 1/2" X 7" Features: Through the Floor Design; 12 volt; Compact Size; 5/8" hose connections; Installation Kit Provided FREE SHIPPING!