75 Gallon, Natural Gas, Power Vent Water Heater, Exclusive 3 Position, 9, 12 & 3 O'Clock, Rotatable Blower With Front Mounted Junction Box, Hot Surface Ignition, Certified For ABS, PVC & Polypropylene Vent Material, Vent Lengths Up To 125 Equivalent Feet With 3" Diameter Venting, 180 Equivalent Feet With 4" Diameter Venting, Side Mounted Taps Designed For Potable Recirculating Systems, D Rated Up To 10,100', Energy Star.