Anyone know what this is? It came out of a furnace and I need to find a replacement part
Pic 2
>>30317
check the shield on the back
>>30317
It's a pressure switch.
But you'll need to replace it with the exact model, which you can find by googling "<your furnace> pressure switch" or whatever identifying numbers are printed on it.
Actually, how d'you know you need to replace it if you don't know what it is?