Rheem SP14270H Gas Control Thermostat， Natural Gas<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>For use with 30， 40， 50， 60 and 75 gallon atmospheric FVIR models</li><li>Natural gas</li><li>Preferred Parts</li><li>Rheem/White Rodgers</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41yXUpHkhHL.jpg" noproxy>