BCH Standard Bulk Yellow Refill Ink 500 ml (16.9 oz) for HP Printers Bulk Standard Quality Dye Ink. Produces vivid true-to-life prints. Match or Exceed OEM specification on color, pH, surface tension and viscosity. Reliable brand and Big Savings. Get premium image quality at competitive prices. Ideal for printing shop and small businesses. Visit BCHTechnologies for more information on ink grading