... OEM service.Epson Stylus PRO 4800 Transparent refillable ink cartridges are released after long time test and ... to the environment 3 Low cost:Transparent refillable ink cartridges,could be used repeatedly,And have ... the air will go out when it is refilling ink,after theink is used up,just refill inks ... 5 Stability: injection moulding, no air leaks,no ink leaks ,no shape changes ,stable quality. 6 It ...