Auxiliary Heater, Universal, 300 cfm, 40, 000 BTU, Mountable Switch, 3 in. O.D. Triple Front Vents, 7 in. H x 16 in. W x 8.625 in. D, 3-Speed 12 V Blower Motor, 5/8 in. Heater Hose Connections|JEGS Auxiliary Heater with Triple Vents [300 CFM, 40,000 BTU].