74 gallon capacity, natural gas, 606 series. 75,100 BTU's, 4" vent size. 1" foam insulation (8.00 R-value), .53 energy factor, pex dip tube, factory installed T&P valve, AHRAE 90A-1980 approved. Rated up to 7700'. Meets flammable vapor and NAECA codes, BOCA approved. Pilot assembly with a (TCO) thermo cut off device. Glass lined tank. Unit dimensions: 61" H. x 26-1/2" D. Height measured to the top of the draft hood. Warranty: 6 year tank and parts. Not for use in mobile homes. Members should compare drop shipment and warehouse pricing prior to placing drop shipment orders. Contact Added Sales: 800/323-7139 ask for Maria at Ext: 4098 or Robert at Ext: 4052, or Fax: 630/694-6145.