Powermite¨ Booster Heater, gas, 4.75 gal storage capacity, blended phosphate water treatment system, low water cut-off, temp./pressure relief valve, pressure reducing valve, (2) temp./pressure gauges, indicator light & on/off switch, stainless steel tank & front, painted body & legs, 105,000 BTU, UL EPH Classified, ANSI/NSF 4, CSA, Made in USA