Product description: 1oz (30ml) Pigment base CYAN ink for Epson T037020 or T037 cartridges. The bottle comes with a needle for easy filling. No need to use syringes anymore1oz (30ml) Pigment base Magenta ink for Epson T037020 or T037 cartridges. The bottle comes with a needle for easy filling. No need to use syringes anymore1oz (30ml) Pigment base Yellow ink for Epson T037020 or T037 cartridges. The bottle comes with a needle for easy filling. No need to use syringes anymore. FFor use on Epson Printers: Epson Stylus C42+ Epson Stylus C42, C44, C46 Epson Stylus C42S, C44S Epson Stylus C42SX, C44SX Epson Stylus C42UX, C44UX Epson Stylus C42 Plus, C44 Plus We also carry Dye based ink for the above cartridge and printer models. Please also check out our refillable cartridges. You can refill those for hundreds of times until your printer wears out. Aren't sure if you wish to get dye based ink or pigment based ink? Read the following facts: Pigment based ink is more water resistant. When submerged in water, pigment based ink only bleed 5~15% while dye based ink can bleed 85% Pigment based ink is less likely to fade over time. Our archival pigment inks' printouts can be stored for over 100 years without significant fading. Dye based ink may fade within years Dye based inks are slightly more vibrant in color. Dye based black ink is a little bit darker than pigment based black ink. Dye based inks are significantly cheaper than pigment based inks. Dye based inks are compatible with almost all inkjet printer models while pigment based inks can't be used with some printers. We do NOT recommend mixing dye based inks and pigment based inks. If you want to try our refillable cartridges and pigment based inks, please order empty refillable cartridges and pigment based inks. Our pre-filled refillable cartridges are prefilled with dye based inks so they can only be refilled with dye based inks.