EPSON UltraChrome GS3 Light Cyan Ink Cartridge - 700ml Epson P7000 & P9000 Accessories this is what they are

this is what they are talking about

Rather than flushing a quantity of white ink and cleaning fluid through the ink lines and system every 4-6 weeks

NOTE:  Temps & times may vary depending on fabric and blend

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EPSON UltraChrome GS3 Light Cyan Ink Cartridge - 700ml Epson P7000 & P9000 Accessories this is what they areItem #T890520 Epson's UltraChrome GS3 solvent Ink builds on the strengths of UltraChrome GS and GS2 with good image stability, superb color precision and outstanding media compatibility. The new formulation provides for enhanced image quality with faster drying and reduced production costs. It features an enhanced gamut, enhanced pigment density and a significant improvement in gloss levels. UltraChrome GS3 ink is nickel free and features a low odor.