The Epson T502 yellow EcoTank ink bottle refills the yellow tank in compatible Epson EcoTank printers. Refilling from a bottle replaces the cartridge swap entirely, so one bottle keeps the printer running through long jobs without a mid-print interruption.Genuine Epson ink is matched to the EcoTank printhead, which holds colour steady from the first page to the last and protects the nozzles over extended print runs. Browse the full Epson ink range or compare the wider ink and toner consumables at Everyday Home Living. Specification Detail Ink series Epson T502 Part number C13T03K492 Colour Yellow Format Refill ink bottle Ink type Genuine Epson EcoTank ink Which printers take the T502 yellow bottle?The T502 range suits Epson EcoTank models that list 502 as their ink series. Check the series number printed on the tank cover or in the printer manual before ordering.How do I refill the yellow tank?Open the tank cover, unseal the bottle, and hold it upright in the yellow tank port. Fill to the upper line marked on the tank, then reseal the cover.