Product review (4 stars): It was the same price as the dogs by themselves and I wouldn't have had the O-ring if I had only bought those so I was pleased o
It turned out I only needed the dogs and the O-ring for the lid which are the same for most models.  I ordered it hoping the assembly was a match for the model I have but it was not.  I will say that it had all the parts and a detailed diagram and simple instructions.  It was the same price as the dogs by themselves and I wouldn't have had the O-ring if I had only bought those so I was pleased overall.  It works great now. Thank you.