... to use. 3.reduce printing cost by 90%. Continuous Ink Supply System (CISS) for HP Suitable for printer: HP series printerColor ... and accessories: Each set of continuous ink supply system contains:1 set continuous ink supply system with sprue plug and air balance ... ,100 plus; 500,500ps,800,800ps,815mfp,copiercc800psHP Office jet 9110,9120,9130;Pro K550,K5400,K5300,K8506 colors:HP Design ...