Bradford White® Tankless Condensing Gas Water Heater, Series: Infiniti® K Series, Model: RTGK160, 9000 to 160000 Btu/hr, 2.6 to 46.64 kW, 3.5 to 7 gpm Flow Rate, 0.95 Energy Factor, 40 mA, 120 V, 60 Hz, 1 ph Phase, NPT Connection, 150 psi, Yes Energy Star Compliant, Wall Mounting, Natural Gas Fuel, Electronic Ignition System, Copper/Stainless Steel, Contains Lead, 140 deg F, 31-1/2 in H x 18-19/32 in W x 9-13/16 in D, 2000 ft Altitude, Additional Information: 3/4 in Connection Size, 22:1 Turndown Ratio