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This isEMERSON White Rodgers 50A55-3797 Furnace Control Circuit Boardused part.
These parts wereremoved by HVAC installer from a fully functioning system. Parts have been inspected by professional and were in working condition when removed.
Please see more details from the imagesattached.
You will receive one of the items pictured or a very similar one.
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You can choose also USPS Priority maildelivery for additional price.
My handling timeis1 business day only.
Purchasing used partsyou agree with the statement that sometimes hidden defects or malfunctions mayoccur during installation or continuous use.There is no long-term warranty on used parts. But you have 30 days FREE return option.