Product review (5 stars): Pretty cool when you can fix the washer machine for ...
Arrived in two days, and was exactly what I needed.  Pretty cool when you can fix the washer machine for under $10.  Don't get the heavy duty steel insert couplers, the plastic ones are designed to fail so you don't screw up the motor or gear box.  I installed this two weeks ago and my wife has washed clothes everyday with no problems.