Transformer for M2 and M3 series furnaces. 120V input (load), 24V output (line). 40VA, 50/60HZ.
Replaces 620688, 620776, 620860, 621440, 621079, 621329, 621486, 621486R, 104445000 & DUB20054401.
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1 Year Warranty on ALL parts!