Robertshaw LENNOX 18G9101 Igniter Control Board Ignition Module SP735L HVAC. Used in Excellent Working Condition. Robertshaw LENNOX 18G9101 Igniter Control Board SP735L HVAC. EChecks must clear before item(s) are released. Tracking information will be available upon request. We do our best to ensure the accuracy of every listings. Unfortunately, do to our high volume, mistakes […]