DTF ink isn't interchangeable. Cartridge shape, chip, and volume are tied to the printer, so the first question is always which machine you're feeding.
Matching ink to your printer
Printhead. DTF ink is made for the printhead it runs through, so match the ink to your printer first and check the printers named on the listing before you order.
Cartridge format. Cartridge size and chip have to fit your machine. Some printers take cartridges in more than one size, and liter pouches make sense once you're going through ink faster.
White ink. The layer behind the color that keeps it bright on dark garments. More on that below.
Head cleaning solution
Ink sitting in a head is what kills printers. Cleaning solution comes in cartridges and bottles, nozzle busting solution clears clogs that have set in, and dummy cartridges with head wash protect the head through storage or a long shutdown. Like ink, cleaning solution is matched to the printer, so pick the one listed for your machine.
Common questions about DTF ink
Can I use any DTF ink in my printer?
No. Match the ink to the printhead and the cartridge format your machine takes. Clogged heads cost more than the ink ever saved.
What does the white ink do?
It's the underbase. Without it, color fades into a dark garment. The printer adds a layer of white behind the color, so once the transfer is pressed every color sits on that white.