Shark Vacuum / shark uv795 vacuum

I purchased a Shark vacuum a year and a half ago. The rollerbar/brushbar bristles have all worn down but Shark does not sell the replacement bar for this particular model. They sell multiple other brushbar replacements for different models, just not this model. Given Costco's generally high standard of product, this is a product that perhaps should not be sold through Costco. While it was a great price, if I cannot easily or at all replace certain parts that wear out this quickly, the cost savings seems to not be there.