Product review (3 stars): I should have pulled out the dryer and looked at ...
I should have pulled out the dryer and looked at the outlet pipe before buying this.  On my machine, the visible outlet pipe is about .750" long, AND is located in a "well" stamped into the back panel sheet metal.  As a result, with the crimped end of the new elbow tight against the back panel of the dryer, there is a gap of about 1.5" between the nearest edges of the elbow inlet and the dryer outlet.  And since the new elbow needs to fit *over* the dryer outlet...the shortfall is actually about 3". I was therefore unable to utilize it.

But that is not a fault of the product or the manufacturer; I am merely providing some additional information.