Replacement spring on these furnace models using solenoids on the primary air intake assemblies. - Classic Edge 350, 550 & 750 models with molded elbows. - Classic Edge 750 models with steel elbows. - E-Classic 3250 models with molded elbow. - E-Classic 1400, 1450, 2300, 2400 & 3200 models with steel elbows.
