This is Trane X1313045401 X13130454-01 21D70-495-91 RTU Furnace Control Board used part. 

This part was removed and inspected by professional installer from a fully functioning system. Was in great working condition when removed.

In very good cosmetic condition as well.  Please see more details from the images attached. 

We inspect our used board very carefully, our tech didn't find any problem with this one, except some signs of cosmetic wear, which are common for this type of boards. We do not let burnt or damaged boards for sale. Some discoloration as a result of previous wear is acceptable though.

FREE USPS standard mail delivery guaranteed.

My handling time is 1 business day only. 

Purchasing used parts you agree with the statement that sometimes hidden defects or malfunctions may occur during installation or continuous use. There is no warranty on used parts.  But you have 30 days satisfaction guarantee and 30 days FREE returns!