BLACK ECO SERIES COMPATIBLE 502U TONER FOR LEXMARK MS510DN MS610 50F2U00 502U...
THEY ARE PRODUCED BY A DIFFERENT SUPPLIER THAN THE 'NON ECO' SERIES. 12 MONTH WARRANTY! COMPATIBLE PRINTERS: MS510dn,MS610de,MS610dn,MS610dte. ECO SERIES COMPATIBLE 502U BLACK TONER FOR LEXMARK MS510DN MS610 50F2U00 502U 20,000 PAGES.