Bradford White® Gas Water Heater, Series: eF Series®, 399,000 Btu/hr Heating, Natural Gas, 1 in Gas Connection, 119 gal Tank, Direct Spark Ignition, Power Direct Vent, Flexible Venting 3,4,or6 in Vent, 1520 gph at 30 deg F Rise Recovery, 94% Energy Efficient, 1-1/2 in NPT Water Connection, 150 psi, 180 deg F, Ultra Low NOx: Yes, ASME(Yes/No): Yes, Steel, Vitraglas®, 33 in Dia x 77-1/8 in H