This remanufactured HP cyan 51640C cartridge is a high quality cartridge and represents a significant saving on the original HP 51640C cartridge. The HP 40 cyan cartridge is compatible with a wide range of HP printers and offers comparable quality to the original HP 51640C cyan cartridge.Our remanufactured Cyan HP 51640C cartridges for this range of HP printers are amongst the lowest priced on the Internet and carry a 100% satisfaction guarantee. All our prices include VAT and delivery so the price you see is the price you pay.