Winnerjet manufactures GTX inks for Brother GTX-400, GTX-422, GTX-423, GTX-425, GTX-600 GXT Bulk GTX PRO GTX PRO printers. Our inks are carefully configured for higher image quality, highly accurate color reproduction, and longer print life. The disposable chips are developed to be 100% compatible with your printer. We have three different ink volumes: 700ML, 5L, and 18L. We have stock available for delivery directly from our overseas warehouse, so please feel free to enquire.