These printers use the T502220 cartridge:

Epson EcoTank 2700

Epson EcoTank 2750

Epson EcoTank 3700

Epson EcoTank 3750

Epson EcoTank 4750

Epson Expression ET-2700 ECOTANK

Epson Expression ET-2750 ECOTANK

Epson Expression ET-3700 ECOTANK

Epson Expression ET-3750 ECOTANK

Epson Expression ET-4750 ECOTANK

Epson Workforce ET-3750

Epson Workforce ET-4750

Epson Workforce ET-4752