Proudly made in Bradenton, FL. all of our products are injection molded out of a BPA free plastic. Our cups are designed to replace filter socks by adding any type of filter media you'd like to the inside of our cup. When your filter media needs replacing, just pull your cup out of your sump and dump the media into the trash. Truly that easy! No need to throw socks in your washer, or to hose them out in your yard.