1.GC21 Refillable Cartridge suitable for printer 
 Ricoh GX3000SFN/GX3000S/GX3000SF/GX7000/GX5050N/GX5000/GX3050SFN/
GX3050N/GX2500/GX2050N etc Printer

Capacity : M/L capacity

2.GC31 Refillable Cartridge suitable for printer

Ricoh E2600/E3300/E330N/E3350N/E5050N/E5500/E5550/E7700 Printer

Capacity : M and L capacity