Leaky gasket for Ultimate Chopper blender...

I have had my Ultimate Chopper and Blender attachment for about 4 years now but have been unable to use the blender for a very long time because the gasket leaks , so I end up with liquids running out all over my counter space.. I have not been able to purchase one of that size anywhere, even at stores like Lowe's. It seems to be an odd size and so the blender, which is great for small/light jobs, is gathering dust in my cupboard, totally useless. Of course, no way to contact the company for replacements; so what does one do - throw it out? Is there any place to buy the right size gasket??? My heavy duty glass blender is really just too big/heavy for some of the small jobs I want to do.... (an no dishwasher but me),