Thought you'd be interested in this "warning" from Maine Sail:
http://forums.catalina.sailboatowners.com/showthread.php?t=113348 (http://forums.catalina.sailboatowners.com/showthread.php?t=113348)
Good find Stu!
I'm surprised!
However, there still is no substitute for spraying your extra impellers with silicone and storing them in a Zip Lock - until needed. That keeps them from drying out.
Thanks for that tip Ron. I will be putting my spare impeller in a zip lock bag, it is currently in the original box.