This ink is specially formulated to be a 100% match for your Brother GTX Pro B Garment Printer. The ink comes only in gallon containers. One gallon = 4 Liters
THIS INK IS PLUG AND PLAY AND SAFE TO MIX WITH BROTHER OEM INK*
Here is what is needed to fill your GTX ProB to level "6" on your container. One gallon of each CMYK (4 liters) and Two gallons of white (8 Liters). Level "6" on your GTX = W 8.5 Liters and CMYK 5 Liters.