Genuine OEM Kyocera ECOSYS P2135D Toners
The ECOSYS P2135D keeps TK-172 black toner separate from the DK-170 drum, FK-171U fuser, DV-172 developer, and MK-172 maintenance kit. Those service parts are not alternate toner cartridges, and PF-100 is a paper tray.
Toner Buzz carries genuine Kyocera TK-172 toner plus the related maintenance and paper-handling items. Use the TK-172 cartridge for toner and choose a different code only when that separate component is the one you need.