The Epson 378 cartridges are especially for the Epson Expression Home printers. If that includes your Home printer, you can see it listed in the product descriptions on the pages of the cartridges. It clearly states which printers the 378 cartridge series supports. You can buy the cartridges by the original brand, Epson. The cartridges are available separately, so you only buy what is needed or you take the combo pack at once. Note that there is also an XL variant.