20-pack of PC-502RF Fax Film Ribbon Refill Rolls Compatible with Brother Fax 575 Brand New Fax Film Ribbon Refill Rolls. Compatible to original Brother PC-502RF fax refill rolls. For use in Brother 575 fax machine. To be used in your empty Brother PC-501 fax cartridge. 20-Pack (20 Full-Length Rolls). Fresh Film, Full Capacity (47 Meters Each).