BROTHER Refill Roll PC404RF 4 Refill Rolls to suit FAX-837PREMIUM QULAITY OF BROTHER GENUINE FAX FILM TONER CARTRIDGES YIELDING 144 PAGES EACH. COMPATIBLE PRINTERS (IF ANY): BROTHER FAX 645,BROTHER FAX 685,BROTHER FAX 685MC,BROTHER FAX 727,BROTHER FAX 737,BROTHER FAX 780,BROTHER FAX 817,BROTHER FAX 827,BROTHER FAX 837,BROTHER FAX 878,BROTHER FAX 960,BROTHER FAX 1280,BROTHER FAX 1980MC,BROTHER MFC 960MC