Welcome to the Gestetner GX-3000 product page. Here you can find information and pricing for your Gestetner 405533 (Type 21C) Genuine Gestetner Ink Cartridge. Easy online ordering of your 405534 (Type 21M) Genuine Gestetner Ink Cartridge, 405533, 405535, 405532, 405534, can be completed from this page. Tonerprice.com backs all of our cartridges with our exclusive warranty. As always, we provide free ground shipping on orders over $75 within the contiguous United States from 5 warehouses nationwide.