INKUTEN Hi-Definition CISS for Workforce WF-7110 WF-3640 WF-3620 WF-7610 WF-7620 T252 Cartridges Continuous Ink system with Extra 4x100ml Premium Dye Ink Bottle The whole system consists of a set of spongeless cartridges with tubes attached, auto reset chips, 4 reservoir bottles(100 ml), 2 tubing brackets, 4 vacuum pumps assembly for filling and installation instructions. Use With: WF-3620 WF-3630 WF-3640 WF-7620 WF-7610 WF-7110 Printer DELUXE CISS System for easy-refill. Original cartridges or chips are not required. Easy to install. Anyone can install this Continuous Ink System within 5 minutes. Save up to 95% printing cost. Ink can be pre-filled. True system ready for "Plug & Play". 5. Use on any type of paper. Doesn't require you "pump the ink" to get it work. No sponge, No drilled hole. No more Ink Cartridges purchase, No more Cartridges replacement. Refillable ink tanks allow countless refill. If you run out of ink, you will only need to buy the refill ink for this system. simply pour the ink refill into the tanks.