Exhaust connector we made for the air compressor on a drilling rig. I dont recall what compressor it was, just that it took up a lot of space in our factory! Someday, someone from somewhere is going to be mighty happy when they come accross this model...it was made very accurately from careful measurments of very very broken parts! once made it just slipped right into place! [did i mention the compressor had rolled down a hill?]