Fits and works on my legacy professional blender but it does spin a little until the base locks. Great for smaller blends like nut butters where the 64oz is too wide for modest amounts of ingredients.
Pros: Texture Quality, Durability, Easy to use, Versatility, Power
We had completed the purchase of a 7500 when we discovered that we could buy this replacement pitcher for our existing blender. It was making terrible noises which were all due to the pitcher, which was 10 years old (so outlived its 5-year warranty by 5 years). The company was so pleasant about refunding the purchase price of the 7500 blender and we were very happy about that. We have had the new pitcher for several weeks now and it is working very well. No more horrendous noises and as far as we can tell, the motor will last at least another 10 years. So overall, it has been the best purchase we have made in our married lives.
I bought my 48oz container so I could make smoothies for one, works better for me as I always made to much when using the bigger container for smoothies.