You will receive one set of Pre-filled, non-OEM Continuous Ink Supply System (CISS/CIS) for HP 88XL with Auto Reset Chips (ARC). They are brand new.
They are compatible with HP OfficeJet Pro Serie printers: K5300, K5400, K5400dn, K5400dtn, K5400n, K5400tn, K550, K550dtn, K550dtwn, K8600, K8600, K8600dn, L7000, L7400, L7480, L7500, L7555, L7580, L7580, L7590, L7600, L7650, L7680, L7681, L7700, L7710, L7750, L7780.
Why Pay More? Print Pay Less!
- Easy Refill: No needles or syringes are needed! No mess! You can refill the Ink Tank directly with our Bulk Refill Ink (Additional Bulk Refill Ink sold separately in our store).
- Auto Reset Chips: Auto Reset Chips can automatically reset by themselves, which makes the cartridges can be used over and over again without limitation.
- Saving Costs: Refilling the cartridges by yourself, you can save about 90% of your costs on OEM cartridges.
- Easy Installation: Just 1 - 2 minutes to install. Super easy (installation video is available)!
- High Quality: Our refill ink is made in Germany. It is packed by ISO 9001:2000 Certified Factory, which guarantees the high quality.
CISS for HP 88, HP 88XL r, Continuous Ink Supply System for HP OfficeJet Pro L7580, L7590
Review by steverino : Great product so far! 
Purchase was easy. Shipping was fast! Took only 2 days to receive. Product was exactly as described. Installation was less than 5 minutes. Only thing I did wrong was once I put the filters in I moved the tanks around too rapidly and some ink spilled, so move slowly and steadily once the filters are installed. Good printing on 1st try. I did notice quite a bit of air in the tubes from the tanks to the cartridges, and it took approx 10-12 cleaning cycles to remove the air from the tubes. But printing - both b/w and color is great! Photos are just as good or better than with the HP cartridges. Looking forward to not having to buy the expensive HP cartridges again! Great product. Thank you!