Based on this product's specifications, here are some alternatives and similar models
Floor brush with shank 50 mm EPM E-560-6050
Summary description:
EPM floor brush with a 50 mm shank (model E-560-6050) is a replacement cleaning brush designed for mechanical or powered scrubbers and sweepers that accept a 50 mm mounting shaft. It features a cylindrical shank for secure attachment and a bristle pack suitable for general floor cleaning and debris removal in industrial, commercial, and maintenance settings.