I had original aluminum carrier's threads stripped beyond repair so I ordered this brass one.
This was the best price on the internet and it arrived within specified amount of time.
Staff at CA were very helpful confirming that I was ordering correct part for my grinder.
Once part arrived, I discovered that bottom threads are also partially stripped and top carrier would not screw in for more than 2 threads. I was searching for the way to get threads repaired and getting nowhere.
Then I decided to force top carrier little by little to "rethread" bottom threads and after about an hour was able to make it all the way down. All thanks to brass threads of new carrier as it is much harder metal than aluminum.
Not my first excellent experience at CA. Keep up the good work!