MedBetterBUY is a free eBay extension that can be used to filter search listings to hide item entries from sellers who have a feedback score or rating percentage below or above values you specify, as well as the ability to filter out Top-rated sellers. To do this, you will need to go to your Manage Account page and log in. The MedBetterBUY extension will then appear on the bottom of the page. Go to the MedBetterBUY section and the option for Hide Search Results will appear in the menu. Next, choose the items you want to hide, and click the Apply button. A notification will appear informing you that the changes are being applied, and the filters should now be applied to all search listings.