Bradford White® Gas Water Heater, Energy Saver, 300000 Btu/hr Heating, Natural Gas, 3/4 in Gas Connection, 75 gal Tank, Electronic Ignition, 7 in Vent Size, 727 gph at 40 deg F Rise Recovery, 80 % Energy Efficient, 1-1/2 in Water Connection, 150 psi, 180 deg F, Ultra Low NOx: No, ASME Yes/No: No, Steel, Vitraglas®, 28-1/4 in Dia x 72-7/8 in H, Domestic